FCC ID: A3LWCA942M Wi-Fi/BT Transceiver

User M Manu ual of W WCA9 942M(

(WCA A943M M) WCA942M M(WCA943M M) is a highly i integrated sin ngle chip whi ich features a low power 2 2x2 11a/b/g/n

/ac/ax dual band Wi-Fi subsystem an nd a Bluetoot th v5.2 subsy ystem, offerin ng feature-rich h wireless con nnectivity at high standard ds, and deliveri ing reliable, c cost-effective e throughput f from an exten nded distance e. 1. Introdu uction 2. Produc ct Details

-Data Mod DSS dulation SS:CCK,BPS FHS SS:GFSK,OQ

-Frequency y Range 4GHz2402-

2.4 GHz5180-5 5G

-Output Po ower tolera ance Output po ower 2.5dB Bm K,QPSK for 802.11b OFD DM:BPSK,QP PSK,16QAM M,64QAM,256 QPSK, 8DPSK K, /4DPSK f 6QAM for 80 02.11a,g,n,ac h for Bluetooth

,ax

-2480MHz, 2 2412-2472MH Hz 825MHz

-Recomme ended Oper rating cond ditions O Operating volt tage Operating g temperature e(ambient) Min 4.5

-20 Typ. 5 25 Max 5.5 50 Unit V C Version 1.0 page 1 of f 4 Approv val Sta atemen nt CE appr roval

-This device is restricted t to indoor use only within th he 5.15 ~ 5.35 5GHz Band.

(Europe) Frequency R Range and M Maximum Ou tput Power (

(EIRP) 2400 M MHz to 2483. 5 MHz : Belo ow 20 dBm fo r Bluetooth 2400 M MHz to 2483. 5 MHz : Belo ow 20 dBm fo r 802.11b/g/n n 5150M MHz to 5250 M MHz : Below 2 23 dBm for 8 02.11a,n,ac 5350M MHz to 5725 M MHz : Below 2 20 dBm for 8 02.11a,n,ac 5725M MHz to 5875 M MHz : Below 14 dBm for 8 02.11a,n,ac FCC app proval This device c complies with Part 15 of th he FCC`s Rule es. Operation n is subject to o the following g two Conditio ons:

1. This device e may not ca use harmful i interference, and 2. This device e must accep pt any interfer rence receive ed, including i interference t hat may caus se undesirabl le operation. To satisfy FC CC exterior la beling require ements, the fo ollowing text must be plac ced on the ext terior of the e end product. Contains T Transmitt er module e FCC ID: A A3LWCA94 42M This equipme ent has been tested and fo ound to comp ply with the lim mits for a Clas ss B digital de evice, pursua ant to part 15 of the FCC Rule es. These lim mits are design ned to provid e reasonable e protection a gainst harmfu ul interference e in a residential ins stallation. Th is equipment generates, u uses and can radiate radio frequency en nergy and, if not installed and used in a accordance w with the instru uctions, may c cause harmfu ul interference e to radio com mmunications s. However, the ere is no guar rantee that in terference wi ill not occur in n a particular installation. If f this equipm ent does cause harmfu ul interferenc e to radio or t television rec ception, which h can be dete ermined by tur rning the equ uipment off an nd Version 1.0 page 2 of f 4 on, the user i is encourage d to try to cor rrect the inter rference by on ne or more of f the following g measures:

-Reorient or relocate the receiving ant tenna.

-Increase the e separation between the equipment a nd receiver.

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

-Consult the dealer or an experienced radio/ TV tec chnician for h help.

-The OEM in ntegrator is re esponsible fo r ensuring the e end-user ha as no manua l instruction to o remove or i nstall module e.

-The module e is limited to installation in n mobile or fix xed applicatio ons. IC appro oval This device contains lice nce-exempt transmitter(s)

)/receiver(s) that comply with Innovat tion, Science and Econom mic Development t Canadas lic cence-exemp pt RSS(s). Op peration is sub bject to the fo ollowing two c conditions:

(1) This devic ce may not ca ause interfere ence.

(2) This devic ce must acce ept any interfe erence, includ ding interferen nce that may cause undes sired operatio on of the devic ce. Lmetteur/r cepteur exe mpt de licen nce contenu dans le pr sent appare il est confor rme aux CN R dInnovatio on, Sciences et Dveloppeme ent conomiq que Canada applicables a aux appareils s radio exemp pts de licence e. Lexploitati ion est autorise e aux deux co onditions suiva antes :

(1) Lappareil l ne doit pas p produire de b brouillage;

compromettre e le fonctionn nement.

(2) Lappare eil doit acce pter tout br ouillage radi iolectrique subi, mme si le broui illage est su usceptible d en The host dev vice must be l labeled to dis splay the Indu ustry Canada certification n number of the e module. Contains t transmitte er module IC:649E-W WCA942M M Le dispositif d d'accueil doiv vent tre tiqu uets pour af fficher le num mro de certific cation d'Indus strie Canada du module. Contient m module m etteur IC :

:649E-WCA A942M IMPORT TANT NO OTE This device c complies with FCC & IC ra adiation expos sure limits se t forth for an uncontrolled environment

. This device should be ins stalled and m ust not be co o-located or o perating in co onjunction wit th any other a antenna or tra ansmitter. This device is s intended on nly for OEM in ntegrators un nder the follow wing condition ns:

1) This modu ule may not b e co-located with any othe er transmitter s or antennas s. 2) The anten na must be in nstalled such that 20cm is maintained b between the a antenna and users. As long as 2 conditions ab bove are met

, further trans smitter test w will not be requ uired. Howeve er, the OEM integrator is still responsib ble for testing g their end-pro oduct for any y additional co ompliance req quirements w with this modu ule installed. In the event t that these con nditions cann not be met, th hen the FCC &

& IC authoriza ations are no o longer consi dered valid and the FCC ID cannot be e used on the e final product t. In these cir rcumstances, the OEM inte egrator will be e responsible e for re-evaluat ting the end p product includ ding this mod dule and obta ining separat e FCC & IC a authorizations s. Cet appareil est conforme e aux limites d de la FCC et IC exposition n aux radiation ns dans un en nvironnemen nt non contrl

. Cet appareil doit tre insta all et ne doit t pas tre co-

-localises ou u oprant en c conjonction a avec une autre e antenne ou u Version 1.0 page 3 of f 4 un autre me etteur. Cet appareil est conu un niquement pou ur les intgra teurs OEM d dans les condi itions suivant tes :

1 ) L' antenne e doit tre ins stalle de telle e sorte que 2 20 cm est mai intenue entre l'antenne et les utilisateu rs . 2 ) Ce modul le ne peut pa s tre co-loca alis avec d'a autres mette eurs ou des an ntennes . A Aussi longtem mps que deux x conditions p prcites son nt remplies, le e test du trans smetteur supp plmentaires ne seront pas tenus. To outefois, l'int grateur OEM M est toujours s responsable e de tester leu urs produits fi finis pour tout tes les exigences de e conformit s supplmentai ires avec ce m module instal ll. Dans le cas o o ces condit tions ne peuv vent pas tre remplies, alo ors la FCC et IC autorisatio ons ne sont p lus considr s comme valid des et l'ID de l la FCC ne pe eut pas tre u tilis sur le pr roduit final. D Dans ces circo onstances, l'in ntgrateur OEM sera re sponsable de e rvaluer le e produit final, l, y compris l'o obtention de c ce module et t spare de l la FCC et IC Autorisations A s User Info formation n Caution: Any y changed or modifications s not express sly approved by the party r responsible fo or compliance e could void the user r`s authority to o operate this s equipment. Attention: To Toute chang ou modificati ions non expr ressment ap pprouvs par la partie resp ponsable de l a conformit pourraient an nnuler l'utilisa ateur `autorit de faire fonc ctionner cet quipement.

-This device is restricted t to indoor use only within th he 5.15 ~ 5.25 5GHz Band.

(Canada)

-User should d also be adv vised that high h-power rada ars are alloca ated as prima ary users (i.e. priority user rs) of the ban nds 5250-5350 M MHz and 565 50-5850 MHz z and that th hese radars c could cause interference and/or dama age to LE-LA AN devices.

-Cet appareil l est restreint l'utilisation l'intrieur s seulement da ans la bande 5 5.15 ~ 5.25GH GHz. Version 1.0 page 4 of f 4

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

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

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

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

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

Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021/09/23 SUBJECT: FCC Application for (FCC ID : A3LWCA942M) To Whom it may concern:

This is to request a Class II permissive change to our product(FCC ID : A3LWCA942M), the device is identical to the previously certified except for the changes as below for details;

Supports MU(multiuser) by adding RU combination and assignment to 802.11ax mode. This authorization is valid until further written notice from the applicant. Please contact me if you have any questions or need future information regarding this application. Regards, Youngjoong Noh / 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 / WCA942M, WCA943M I, JENNI CHUN of SAMSUNG Electronics Co., Ltd. hereby appoint Youngjoong Noh 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 04/21/2021 and continue to 04/21/2022 effective unless specifically terminated by either party. This authorization is limited to the product of as following:

FCC ID: A3LWCA942M Dated 04/21/2021, 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

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

Special Power of Attorney I, Youngjoong Noh of Samsung Electronics Co., Ltd. hereby authorize appoint Wonjae Hwang of CTK 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 2021/09/23 and continue to effective unless specifically terminated by either party. Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCA942M Dated 2021/09/23 Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

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

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: A3LWCA942M 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 Parts List Operational description File Name

(WCA942M,WCA943M)_Block Diagram.pdf

(WCA942M)_Schematics.pdf

(WCA943M)_Schematics.pdf

(WCA942M)_Schematics PCB Layout.pdf

(WCA943M)_Schematics PCB Layout.pdf

(WCA942M)_Part List.pdf

(WCA943M)_Part List.pdf

(WCA942M,WCA943M)_Operational Description.pdf

(WCA942M)_Antenna Specification Operational Description.pdf

(WCA943M)_Antenna Specification 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. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type Sincerely, File Name Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd. Rev 11/20/07

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 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 / WCA942M, WCA943M 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,. Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

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

MODULAR APPROVAL LETTER 2020-11-23 Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCA942M 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) The radio element of the modular transmitter has its own shielding Refer to the external photo The modular transmitter must have buffered modulation data/inputs (if such inputs are provided) All input to the modules are buffered through microprocessor inputs. 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). The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. 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 Internal power regulators Refer to the Block-diagram Refer to the internal photo The EUT was tested in a standalone configuration via a SD extension cable Refer to the test setup photo Refer to the user manual Refer to the user manual Refer to the RF exposure statement for more details. 1 2 3 4 5 6 7 8 Y Y Y Y Y Y Y Y Sincerely, Youngjoong Noh / 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 / WCA942M, WCA943M I, JENNI CHUN of SAMSUNG Electronics Co., Ltd. hereby appoint Youngjoong Noh 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 04/21/2021 and continue to 04/21/2022 effective unless specifically terminated by either party. This authorization is limited to the product of as following:

FCC ID: A3LWCA942M Dated 04/21/2021, 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

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

Special Power of Attorney I, Youngjoong Noh of Samsung Electronics Co., Ltd. hereby authorize appoint JiHye Kim of CTK 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 2021/04/21 and continue to effective unless specifically terminated by either party. Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCA942M Dated 2021/04/21 Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 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: A3LWCA942M

(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) 5955-6415 5965-6405 5985-6385 6435-6515 6445-6485 6465 6535-6855 6525-6845 6545-6865 6875-7115 6885-7085 6945-7025 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 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 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 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 No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No

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

(4) Meet 15.202 requirement pls check below :

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.

(If apply, pls help to provide explanation on it was implement, and how software was controlled) Does not apply Apply Sincerely Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

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

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: A3LWCA942M 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 Parts List Operational description File Name

(WCA942M,WCA943M)_Block Diagram.pdf

(WCA942M)_Schematics.pdf

(WCA943M)_Schematics.pdf

(WCA942M)_Schematics PCB Layout.pdf

(WCA943M)_Schematics PCB Layout.pdf

(WCA942M)_Part List.pdf

(WCA943M)_Part List.pdf

(WCA942M,WCA943M)_Operational Description.pdf

(WCA942M)_Antenna Specification Operational Description.pdf

(WCA943M)_Antenna Specification 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. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type Sincerely, File Name Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd. Rev 11/20/07

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

MODEL ATTESTATION COVER LETTER Date: 2020-11-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCA942M Product/ Model Number : Wi-Fi/BT Transceiver / WCA942M, WCA943M Addition of model name as follow:

- Basic Model name : WCA942M

- Variant Model name : WCA943M The device has the same electrical characteristics except for the antenna. Sincerely, Youngjoong Noh / 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 / WCA942M, WCA943M I, JENNI CHUN of SAMSUNG Electronics Co., Ltd. hereby appoint Youngjoong Noh 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 11/23/2020 and continue to 11/23/2021 effective unless specifically terminated by either party. This authorization is limited to the product of as following:

FCC ID: A3LWCA942M Dated 11/23/2020, 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

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

Special Power of Attorney I, Youngjoong Noh of Samsung Electronics Co., Ltd. hereby authorize appoint WonJae, Hwang of CTK 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 2020/11/23 and continue to effective unless specifically terminated by either party. Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCA942M Dated 2020/11/23 Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

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

FCC Software Configuration Control Declaration Date: 2020-11-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCA942M Product/ Model Number : Wi-Fi/BT Transceiver / WCA942M, WCA943M 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. Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.