FCC ID: A3LWCC940M Wi-Fi/BT Transceiver

User Manual of WCC940M 1. Introduction WCC940M is a highly integrated single chip which features a low power 2x2 11a/b/g/n/ac/ax Tri band Wi-Fi subsystem and a Bluetooth v5.2 subsystem, offering feature-rich wireless connectivity at high standards, and delivering reliable, cost-effective throughput from an extended distance. 2. Product Details

-Data Modulation DSSS:CCK,BPSK,QPSK for 802.11b OFDM:BPSK,QPSK,16QAM,64QAM,256QAM for 802.11a,g,n,ac,ax OFDMA:16QAM,64QAM,256QAM for 802.11ax FHSS:GFSK,OQPSK, 8DPSK, /4DPSK for Bluetooth

-Frequency Range 2.4GHz2.4-2.4835GHz bands 5GHz5.15-5.25GHz, 5.25-5.35GHz, 5.47-5.725GHz, 5.725-5.85GHz, 5.85-5.895GHz bands 6GHz5.925-7.125GHz bands

-Output Power tolerance Output power 2.0dBm

-Recommended Operating conditions Operating voltage Operating temperature(ambient) Min Typ. Max Unit 4.5

-20 5 25 5.5 50 V C Version 1.0 page 1 of 9 Approval Statement FCC approval RF Software restrictions 1. Contention-Based Protocol, as demonstrated in the FCC test report, is permanently embedded in the module and is not host-dependent, cant change by anyone. 2. Operation of transmitters in the 5.25-5.35GHz, 5.47-5.725GHz, 5.85-5.895GHz, 5.925-7.125GHz bands is this Modular device will only associate and connect with a low-power indoor access point or subordinate device and never directly connect to other client devices. This feature is include in its firmware and cant change by anyone. 3. Operation of transmitters in the 5.25-5.35GHz, 5.47-5.725GHz, 5.85-5.895GHz, 5.925-7.125GHz bands is this Modular device will always initiate transmission under the control of a low-power indoor AP or subordinate except for brief transmissions before joining a network. These short messages will only occur if the client has detected an indoor AP or subordinate operating on a channel. These brief messages will have a time-out mechanism such that if it does not receive a response from an AP it will not continually repeat the request. 4. That transmissions will be lower or equal to the power advertised by the indoor low-power access point or subordinate and never above the maximum output power allowed by the FCC grant for equipment class 6XD. This device complies with Part 15 of the FCC`s Rules. Operation is subject to the following two Conditions:

1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesirable operation. To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product. Contains Transmitter module FCC ID: A3LWCC940M This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult the dealer or an experienced radio/ TV technician for help.

-The OEM integrator is responsible for ensuring the end-user has no manual instruction to remove or install module.

-The module is limited to installation in mobile or fixed applications. Version 1.0 page 2 of 9 FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This device meets all the other requirements specified in Part 15E, Section 15.407 of the FCC Rules. FCC regulations restrict operation of this device to indoor use only. The operation of this device is prohibited on oil platforms, cars, trains, boats, and aircraft, except that operation of this device is permitted in large aircraft while flying above 10,000 feet. Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems. Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Version 1.0 page 3 of 9 This module is intended for OEM integrators only. Per FCC KDB 996369 D03 OEM Manual v01 guidance, the following conditions must be strictly followed when using this certified module:

KDB 996369 D03 OEM Manual v01 rule sections:

2.2 List of applicable FCC rules This module has been tested for compliance to FCC Part 15 Subpart C (15.247) and Subpart E (15.407). 2.3 Summarize the specific operational use conditions The module is tested for standalone mobile RF exposure use condition. Any other usage conditions such as co-

location with other transmitter(s) will need a separate reassessment through a class II permissive change application or new certification. This module is authorized for Low Power Indoor Client applications only; final host product must be for indoor operations only. Further operation restrictions on the host product include:

*Prohibited for control of or Communications with unmanned aircraft systems. 2.4 Limited module procedures Not applicable. 2.5 Trace antenna designs Not applicable. 2.6 RF exposure considerations This equipment complies with FCC mobile radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body. A separate SAR/Power Density evaluation is required to confirm compliance with relevant FCC portable RF exposure rules. 2.7 Antennas The following antennas have been certified for use with this module; antennas of the same type with equal or lower gain may also be used with this module except for operations within the 5.925~7.125GHz band. Use of other antenna types or the same type of antenna with higher gain than listed above must performed additional testing and appropriate permissive change approval. Note2: In the 5.925-7.125GHz band, use of other similar type antennas and the antenna gain not higher/lower than listed above may only require a C1PC without any additional testing/submission. Note3: Additional testing/submission (C2PC) will required if device not met the antenna and RF exposure requirements. Note4: Contact Samsung for additional guidance, if choose to use different antenna types or higher/lower gain antennas in the end system. Version 1.0 page 4 of 9 IMPORTANT: The final host product must have an integral antenna which is not removable by the end-user. Antenna Specification Antenna type : Chip Antenna Bluetooth/BLE : -1.62 dBi (BT0), 0.14 dBi (BT1) WLAN 2.4GHz : -0.63 dBi (ANT0), 0.67 dBi (ANT1) WLAN 5GHz : UNII 1, UNII 2A : 0.33 dBi (ANT0), 0.08 dBi (ANT1) UNII 2C, UNII 3 : 1.61 dBi (ANT0), 1.58 dBi (ANT1) UNII 4 : 0.32 dBi (ANT0), -0.33 dBi (ANT1) WLAN 6GHz : 1.27 dBi (ANT0), -0.04 dBi (ANT1) IMPORTANT: The final host product must have an integral antenna which is not removable by the end-user. 2.8 Label and compliance information The final end product must be labeled in a visible area with the following: Contains FCC ID: A3LWCC940M. The grantee's FCC ID can be used only when all FCC compliance requirements are met. 2.9 Information on test modes and additional testing requirements This transmitter is tested in a standalone mobile RF exposure condition and any co-located or simultaneous transmission with other transmitter(s) class II permissive change re-evaluation or new certification. 2.10 Additional testing, Part 15 Subpart B disclaimer This transmitter module is tested as a subsystem and its certification does not cover the FCC Part 15 Subpart B

(unintentional radiator) rule requirement applicable to the final host. The final host will still need to be reassessed for compliance to this portion of rule requirements if applicable. As long as all conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. Manual Information To the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Version 1.0 page 5 of 9 OEM/Host manufacturer responsibilities OEM/Host manufacturers are ultimately responsible for the compliance of the Host and Module. The final product must be reassessed against all the essential requirements of the FCC rule such as FCC Part 15 Subpart B before it can be placed on the US market. This includes reassessing the transmitter module for compliance with the Radio and EMF essential requirements of the FCC rules. This module must not be incorporated into any other device or system without retesting for compliance as multi-radio and combined equipment. Modules: extended to host manufacturers by integration instructions. IMPORTANT NOTE This device complies with FCC & IC radiation exposure limits set forth for an uncontrolled environment. This device should be installed and must not be co-located or operating in conjunction with any other antenna or transmitter. This device is intended only for OEM integrators under the following conditions:

1) This module may not be co-located with any other transmitters or antennas. 2) The antenna must be installed such that 20cm is maintained between the antenna and users. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements with this module installed. In the event that these conditions cannot be met, then the FCC & IC authorizations are no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product including this module and obtaining separate FCC

& IC authorizations. Contact info for above certified FCC:

Company Name: Samsung Electronics America, Inc Contact Name: JENNI CHUN Address: 19 Chapin Rd, Building D. Pine Brook, NJ 07058 Telephone No: 973-808-6375 Email: j1.chun@samsung.com Version 1.0 page 6 of 9 IC approval This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not causeinterference.

(2) This device must accept any interference, including interference that may cause undesired operation of thedevice. Lmetteur/rcepteur exempt de licencecontenudans le prsentappareilestconforme aux CNR dInnovation, Sciences et Dveloppementconomique Canada applicables aux appareils radio exempts de licence. Lexploitationestautorise aux deux conditions suivantes :

(1) Lappareil ne doit pas produire debrouillage;

(2) Lappareildoitaccepter toutbrouillageradiolectriquesubi, mmesi le brouillageest susceptible dencompromettre lefonctionnement. The host device must be labeled to display the Industry Canada certification number of the module. Contains transmitter module IC:649E-WCC940M Le dispositifd'accueildoiventtretiquets pour afficher le numro de certification d'Industrie Canada du module. Contient module metteurIC :649E-WCC940M Cetappareilestconforme aux limites de la FCC et IC exposition aux radiations dans un environnement non contrl. Cetappareildoittreinstall et ne doit pas tre co-localisesouoprantenconjonction avec uneautreantenneou un autremetteur. Cetappareilestconuuniquement pour les intgrateurs OEM dans les conditions suivantes :

1 ) L' antennedoittreinstalle de tellesorte que 20 cm estmaintenue entre l'antenne et les utilisateurs . 2 ) Ce module ne peut pas tre co-localis avec d'autresmetteursou des antennes . Aussilongtemps que deux conditions prcitessontremplies, le test du transmetteursupplmentaires ne seront pas tenus. Toutefois, l'intgrateur OEM esttoujoursresponsable de tester leursproduits finis pour toutes les exigences de conformitsupplmentaires avec ce module install. Dans le casoces conditions ne peuvent pas treremplies, alors la FCC et IC autorisations ne sont plus considrscommevalides et l'ID de la FCC ne peut pas treutilis sur le produit final. Danscescirconstances, l'intgrateur OEM sera responsable de rvaluer le produit final, y comprisl'obtention de ce module et spare de la FCC et IC Autorisations Version 1.0 page 7 of 9 User Information Caution: Any changed or modifications not expressly approved by the party responsible for compliance could void the user`s authority to operate this equipment. Attention: Toutechangou modifications non expressmentapprouvspar la partieresponsable de la conformitpourraientannulerl'utilisateur `autorit de faire fonctionnercetquipement.

-This device is restricted to indoor use only within the 5.15 ~ 5.25GHz Band. (Canada)

-User should also be advised that high-power radars are allocated as primary users (i.e. priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.

-Cetappareilestrestreint l'utilisation l'intrieurseulementdans la bande 5.15 ~ 5.25GHz. Version 1.0 page 8 of 9 CE approval

-This device is restricted to indoor use only within the 5.15 ~ 5.35GHz Band and 5.945~6.425GHz Band. (Europe) Frequency Range and Maximum Output Power (EIRP) 2400 MHz to 2483.5 MHz : Below 20 dBm for Bluetooth 2400 MHz to 2483.5 MHz : Below 20 dBm for 02.11b,g,n,ax 5150MHz to 5250 MHz : Below 23 dBm for 802.11a,n,ac,ax 5350MHz to 5725 MHz : Below 20 dBm for 802.11a,n,ac,ax 5725MHz to 5875 MHz : Below 14 dBm for 802.11a,n,ac,ax 5945MHz to 6425 MHz : Below 23dBm for 802.11 ax Version 1.0 page 9 of 9

CTK Co., Ltd.

(Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Label Photographs

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

U.S. Agent Designation for Service of Process Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref : FCC Certification Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Samsung Electronics America, Inc Contact Name: JENNI CHUN Address: 19 Chapin Rd, Building D. Pine Brook, NJ 07058 Telephone No: 973-808-6375 Email: j1.chun@samsung.com FRN #: 0027908797 This letter is to confirm that we (the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature:

Signed by (Printed Name/Title): JENNI CHUN / General Manager, Regulatory & Environmental Affairs Date : 04/05/2023 FCC ID: A3LWCC940M The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Samsung Electronics Co Ltd Grantee Code: A3L Contact Name: Minhyung Cho Street Address: 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Telephone No: +82-31-277-2688 Email: mh719.cho@samsung.com Applicant Signature:

Signed by (Printed Name/Title): Minhyung Cho / Staff Engineer Date : 04/05/2023

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

Certification Attestation Statements Date: April 5, 2023 Attn:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA U.S. Agent for service of process:

Company Name: Samsung Electronics America, Inc Contact Name: JENNI CHUN Address: 19 Chapin Rd, Building D. Pine Brook, NJ 07058 FCC ID : A3LWCC940M To Whom It May Concern:

47 CFR section 2.911(d)(5)(i) Attestation Statement Samsung Electronics Co Ltd certifies that as of the date of the application the equipment for which authorization is sought is not covered equipment1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. 47 CFR section 2.911(d)(5)(ii) Attestation Statement Samsung Electronics Co Ltd certifies that, as of the date of the filing of this application, the applicant - is / - is not identified on the Covered List as an entity producing covered equipment. Thank you, Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID : A3LWCC940M Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Block diagram Schematics Schematics_PCB Layout Parts list Operational description File Name

(WCC940M)Block diagram.pdf

(WCC940M)Schematics.pdf

(WCC940M)Schematics PCB Layout.pdf

(WCC940M)Part list.pdf

(WCC940M)Operational description.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd. Rev 11/20/07

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

FCC DFS Uniform Spreading Declaration Date: 2023-04-05 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCC940M Product/ Model Number : Wi-Fi/BT Transceiver / WCC940M Regarding Uniform Spreading requirements for DFS operation identified in FCC 06-96 in ET Docket 03-

122;

"Uniform Channel Spreading: The spreading of U-NII device Operating Channels over the 5250-

5350 MHz and/or 5470-5725 MHz bands to avoid dense clusters of devices operating on the same Channel."

We declare the device provides on aggregate a Uniform Spreading of the Operating Channels across the entire band. This applies to the 5250-5350 MHz and/or 5470-5725 MHz bands. Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-

do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

MODULAR APPROVAL LETTER Applicant : Samsung Electronics Co Ltd FCC ID : A3LWCC940M Date : 2023/04/05 We would like to answer for Single Modular Approval in accordance with the requirement of rule part 15.212 as described below No. Requirements Comment Comply (Y/N) 1 2 3 4 5 6 7 8 The radio element of the modular transmitter has its own shielding The modular transmitter must have buffered modulation data/inputs (if such inputs are provided) The modular transmitter must have its own power supply regulation. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). Refer to the external photo All input to the modules are buffered through microprocessor inputs. Internal power regulators Refer to the Block-diagram Refer to the internal photo The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. The EUT was tested in a standalone configuration via a SD extension cable Refer to the test setup photo The modular transmitter must be labeled with its own FCC ID. If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements The modular transmitter must comply with any applicable RF exposure requirements Refer to the user manual Refer to the user manual Refer to the RF exposure statement for more details. Y Y Y Y Y Y Y Y Sincerely, Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date : Apil 05, 2023 SUBJECT: FCC Application for (FCC ID : A3LWCC940M) To Whom It May Concern:

We, the undersigned, hereby authorize Won-Jae Hwang at CTK on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by CTK on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Special Power of Attorney Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Product/ Model Number: Wi-Fi/BT Transceiver / WCC940M I, JENNI CHUN of SAMSUNG Electronics Co., Ltd. hereby appoint Minhyung Cho of SAMSUNG Electronics Co., Ltd. to represent me to act on my behalf to do any and all of the following :

Sign on my behalf the agency, anti-drug and confidentiality cover letters and apply to FCC for the products. The right, powers and authority in fact to exercise any and all of the rights and powers herein granted shell commence and be in full force from 04/05/2023 and continue to 04/05/2024 effective unless specifically terminated by either party. This authorization is limited to the product of as following:

FCC ID: A3LWCC940M Dated 04/05/2023, JENNI CHUN Sincerely,. NAME: JENNI CHUN TITLE: General Manager, Regulatory & Environmental Affairs Applicant: Samsung Electronics America, Inc Address: 19 Chapin Rd, Building D. Pine Brook, NJ 07058

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

FCC Software Configuration Control Declaration Date: 2023-04-05 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCC940M Product/ Model Number : Wi-Fi/BT Transceiver / WCC940M Regarding FCC Country Code Selection guidelines identified in KDB 594280 "Country Code Selection". All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 UNII Device Declaration Letter To whom it may concern:

We have declared below featured for FCC equipment authorization, Device FCC ID: A3LWCC940M

(1) Operational Mode :

Master N/A Client with Radar detection capability Client without radar detection capability,

(2) Active / Passive Scanning , adhoc mode access point capability Frequency Band (MHz) Active Scanning

(the device can transmit a probe

(beacon)) passive scanning

(where the device is can listen only with no probes) Ad Hoc Mode capability Access point capability 2412-2472 2422-2462 5180-5240 5190-5230 5210 5500-5720 5510-5710 5530-5690 5745-5825 5755-5795 5775 5955-6415 5965-6405 5985-6385 6435-6515 6445-6485 6465 6535-6855 6525-6845 6545-6865 6875-7115 6885-7085 6945-7025 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

(3) Country code selection ability If yes, pls explain how it was implemented:

(4) Meet 15.202 requirement pls check below :

Yes Yes No No No No No No No No No No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No No No No No A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network.

(5) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non-

DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes cannot be modified by end user or an installer. Apply Does not apply

(If apply, pls help to provide explanation on it was implement, and how software was controlled) Sincerely Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

FCC DFS Uniform Spreading Declaration Date: 2023-05-30 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCC940M Product/ Model Number:Wi-Fi/BT Transceiver / WCC940M We attest that the device complies with device protocol requirements and operational restrictions:

1.This is a client device and it will not directly connect to another client device on any channels that are contained, even partially, within the UNII-4 band. 2.It will only associate and connect with an indoor Access Point (AP) or indoor Subordinate within the UNII-4 band. 3.It will always be under the control of an indoor AP within the UNII-4 band. It does not support active scanning in the UNII-4 bands. In the UNII-4 band if an AP is detected this client device may transmit brief messages, prior to being under the control of an AP, to join an AP network. These brief messages will have a time-out mechanism if it does not receive a response from an AP. Should you have any questions or comments concerning the above, please contact the undersigned. Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.

129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Tel No : +82-31-277-2688 Fax No : -

Attestation Letter Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Product/ Model Number: Wi-Fi/BT Transceiver / WCC940M 1. This device will only associate with a low power indoor AP for WIFI 6E operations. Hotspot Mode, ad-hoc and any other P2P service is disabled for WIFI 6E operations. This device will not connect directly to another client device using WIFI 6E frequencies. 2. This device will always initiate transmission under the control of a low power indoor AP or subordinate except for brief transmissions before joining a network. These short messages will only occur if the client has detected an indoor AP or subordinate operating on a channel. These brief messages will have a time-out mechanism such that if it does not receive a response from an AP it will not continually repeat the request. 3. The transmissions will be lower or equal to the power advertised by the indoor low-power access point and never above the maximum output power allowed by the FCC grant for equipment class 6XD. 4. Contention-based protocol as demonstrated in the test report is permanently embedded in the module and is not host-dependent. 5. This device is prohibited for control of or communications with unmanned aircraft systems, including drones. Sincerely,. Minhyung Cho / Staff Engineer Samsung Electronics Co., Ltd.