2BVAZ-VXDesktop PC

Shenzhen Lanjin Technology Co., Ltd. Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Apr. 14, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BVAZ-VX Shenzhen Lanjin Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Shenzhen Lanjin Technology Co., Ltd. Title: manager Address: 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Tel.: 18906679427 Email: [email protected]

Shenzhen Lanjin Technology Co., Ltd. 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Apr. 14, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BVAZ-VX] Product Name: [Desktop PC] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Jack bu Title:manager Address: 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Tel.: 18906679427 Email: [email protected] Shenzhen Lanjin Technology Co., Ltd. 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☐ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☐ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☐ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☐ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☒ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check SBOM (Software Bill of Materials) Section Component Name Version Supplier 1 windows 11 Microsoft Corporation 2 Microsoft Store 11 Microsoft Corporation 3

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company name: HOPEK CORPORATION INC FRN: 0034562900 Contact Name: Yangyang Xu Address: 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States Telephone No: 561-875-9826 Email: [email protected] Applicant: Company name: Shenzhen Lanjin Technology Co., Ltd. Grantee Code: 2BVAZ FCC ID: 2BVAZ-VX FRN: 0038181590 Contact Name: Jack bu Address: 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Telephone No: 18906679427 Fax No: 18906679427 Email: [email protected] Shenzhen Lanjin Technology Co., Ltd. certifies that, as of the date of this filing of the application with the TCB, [HOPEK CORPORATION INC] is our designated US agent for service of process for the above referenced FCC ID. Shenzhen Lanjin Technology Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [HOPEK CORPORATION INC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026-04-14 Applicant’s Name: Jack bu US Agent’s Name: Yangyang Xu Title: manager Title: manager Signature: Signature:

Shenzhen Lanjin Technology Co., Ltd. Family models declaration letter. Date: April 14, 2026 We Shenzhen Lanjin Technology Co., Ltd. Of 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Product: Desktop PC FCC ID: 2BVAZ-VX Model Name: VX Serial Model: X1,VX40,VX42,VX44,VX46,VX48,VX50,VX52,VX54,VX56,VX58,VTI-400,VTI-409,VTI-430 ,VTI-439,VTI-490,VTI-499,VTA-400,VTA-409,VTA-430,VTA-439,VTA-490,VTA-499 Difference description of series models: All models have the same circuit and RF module, except for the model name and color Thanks Sincerely Signature Name: Jack bu Date: Apr.14, 2026 Title: manager

Shenzhen Lanjin Technology Co., Ltd. Apr 14, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BVAZ-VX Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below :  Block Diagram  Schematics  Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired.  User Manual  Internal Photos  External Photos  Test Setup Photos Sincerely, Title: manager Address: 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Tel.: 18906679427 Email: [email protected]

Shenzhen Lanjin Technology Co., Ltd. Apr 14, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BVAZ-VX I, the undersigned, hereby authorize Shenzhen ETR Standard Technology Co., Ltd. to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by Shenzhen ETR Standard Technology Co., Ltd. shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with Shenzhen Lanjin Technology Co., Ltd. We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Title： manager Tel: 18906679427 Fax: 18906679427 Email: [email protected]

Shenzhen Lanjin Technology Co., Ltd. FCC Software Configuration Control Declaration Rev1.0.docx FCC Software Configuration Control Declaration Date: April 14, 2026 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ Model Number: Desktop PC VX,X1,VX40,VX42,VX44,VX46,VX48,VX50,VX52,VX54,VX56,VX58,VTI-400,VTI- 409,VTI-430,VTI-439,VTI-490,VTI-499,VTA-400,VTA-409,VTA-430,VTA-439,VTA- 490,VTA-499 Regarding FCC Country Code Selection guidelines identified in KDB 594280. “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. (Signature of applicant) Name: Jack bu Date: Apr. 14, 26 Title: manager Tel: 18906679427 Fax: 18906679427 Email: [email protected]

FCC ID: 2BVAZ-VX RF Exposure Evaluation Limits According to47 CFR Part 2.1091 and 447498 D01 General RF Exposure Guidance v06 The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. FCC ID: 2BVAZ-VX Test Result of RF Exposure Evaluation The source of the evaluation data results is based on the test report ET-26020487E01/02/03 BLE Antenna gain=1.38dBi 2.4G WIFI Antenna gain=1.38dBi 5G WIFI Antenna gain=2.89dBi FOR BLE Mode Output power (dBm) Tune-up power (dBm) Max Tune-up (dBm) Max Tune-up (mW) Numeric antenna gain Power Density at R=20cm (mW/cm2) Limit (mW/cm2) Result GFSK -0.28 0±1 1 1.26 1.37 0.0003 1.0 PASS FOR 2.4GWIFI Mode Output power (dBm) Tune-up power (dBm) Max Tune-up (dBm) Max Tune-up (mW) Numeric antenna gain Power Density at R=20cm (mW/cm2) Limit (mW/cm 2 ) Result 802.11b 14.69 15±1 16 39.81 1.37 0.0109 1.0 PASS 802.11g 14.70 15±1 16 39.81 1.37 0.0109 1.0 PASS 802.11n20 14.58 15±1 16 39.81 1.37 0.0109 1.0 PASS 802.11n40 13.82 14±1 15 31.62 1.37 0.0086 1.0 PASS FOR 5GWIFI Mode Output power (dBm) Tune-up power (dBm) Max Tune-up (dBm) Max Tune-up (mW) Numeric antenna gain Power Density at R=20cm (mW/cm2) Limit (mW/cm 2 ) Result 802.11a 14.57 15±1 16 39.81 1.95 0.0155 1.0 PASS 802.11n20 14.20 14±1 15 31.62 1.95 0.0123 1.0 PASS 802.11ac20 14.34 14±1 15 31.62 1.95 0.0123 1.0 PASS 802.11n40 13.13 13±1 14 25.12 1.95 0.0097 1.0 PASS 802.11ac40 13.17 13±1 14 25.12 1.95 0.0097 1.0 PASS 802.11ac80 12.29 12±1 13 19.95 1.95 0.0077 1.0 PASS FCC ID: 2BVAZ-VX FOR 5.8GWIFI Mode Output power (dBm) Tune-up power (dBm) Max Tune-up (dBm) Max Tune-up (mW) Numeric antenna gain Power Density at R=20cm (mW/cm2) Limit (mW/cm 2 ) Result 802.11a 14.53 15±1 16 39.81 1.95 0.0155 1.0 PASS 802.11n20 14.57 15±1 16 39.81 1.95 0.0155 1.0 PASS 802.11ac20 14.63 15±1 16 39.81 1.95 0.0155 1.0 PASS 802.11n40 13.26 13±1 14 25.12 1.95 0.0097 1.0 PASS 802.11ac40 13.16 13±1 14 25.12 1.95 0.0097 1.0 PASS 802.11ac80 12.08 12±1 13 19.95 1.95 0.0077 1.0 PASS If BT and WIFI work simultaneously BLE+2.4G WIFI, the total power density is 0.0003/1+0.0109/1=0.0112<1. BLE+5GWIFI, the total power density is 0.0003/1+0.0155/1=0.0158<1. BLE+5.8GWIFI, the total power density is 0.0003/1+0.0155/1=0.0158<1. Maximum power density=0.0158<1. Then SAR evaluation is not require .

SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Antenna Test Report 1 3 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Test environment 测试项目测试设备 S参数 （S-parameter) 1. 电压驻波比(VSWR) 2. 回波损耗（Rrtun Loss) 网络分析仪：Agilent8753ES 2.有源测试 (Active) 1. 发射功率（TRP) 2. 接收灵敏度（TIS ） 3. 屏灭/屏亮 1. 暗室：5*3*3m （3D ）Chamber 2. 综测仪：Agilent8960 CMW500 3.无源测试 （Passive) 1. 天线增益(Gain) 2. 天线效率（Efficiency) 1. 暗室：5*3*3m （3D ）Chamber 2. 网络分析仪：Agilent 8753ES CMW500 5 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Matching circuit 电容（PF）电感（NH） E1(0402) E2(0402) E3(0402) E4(0402) 6 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Passive test data Frequency(MHZ)2400250051505850 Return Loss(DB) -9.07-7.01-11.09-9.36 ANT1 S11-VSWR&Return Loss 7 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Passive test data 8 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Passive test data 14 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Passive test data 15 SHENZHEN Xingyuanchuang TECHNOLOGY CO.,LTD Passive test data

Report No.: ET-26020487E03 This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen ETR Standard Technology Co., Ltd. TEST REPORT Applicant: Shenzhen Lanjin Technology Co., Ltd. Address of Applicant: 2503 Mingtengzhongxin Building, No. 48 Qinghu Road, Qinghua Community, Longhua Street, Longhua District, Shenzhen, China Manufacturer: Yancheng Lanjin Technology Co., Ltd. Address of Manufacturer: No. 222 Guanggu Building, Guanhua Road North and Shanghai Road West, Jianhu County Development Zone, Yancheng Product Name: Desktop PC Model No.: VX,X1,VX40,VX42,VX44,VX46,VX48,VX50,VX52,VX54,VX56,VX58,VTI- 400,VTI-409,VTI-430,VTI-439,VTI-490,VTI-499,VTA-400,VTA-409,VTA- 430,VTA-439,VTA-490,VTA-499 Trade Mark: BOSGAME FCC ID: 2BVAZ-VX Applicable standards: FCC CFR Title 47 Part 15 Subpart E Section 15.407 Date of Test: Feb.04, 2026-Apr.10, 2026 Date of report issued: Apr.11, 2026 Remark: The results shown in this test report refer only to the sample(s) tested , this test report cannot be reproduced, except in full without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver Prepared By Shenzhen ETR Standard Technology Co., Ltd. Address: No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Compiled by: Reviewed by: Approved by: Project Engineer Project Manager Authorized Signature - Page 2 of 55 Report No.: ET-26020487E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Report Revision History Report No. Description Issue Date ET-26020487E03 Original Apr.11, 2026 - Page 3 of 55 Report No.: ET-26020487E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Contents Page 1 TEST SUMMARY ......................................................................................................................................4 1.1 MEASUREMENT UNCERTAINTY .............................................................................................................4 2 GENERAL INFORMATION .......................................................................................................................5 2.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 2.2 TEST MODE .........................................................................................................................................7 2.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................8 2.4 TEST FACILITY ....................................................................................................................................8 2.5 ADDITIONAL INSTRUCTIONS ..................................................................................................................8 3 TEST INSTRUMENTS LIST ......................................................................................................................9 4 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 4.1 ANTENNA REQUIREMENT ....................................................................................................................10 4.2 CONDUCTED EMISSIONS ....................................................................................................................11 4.3 DUTY CYCLE ......................................................................................................................................14 4.4 CONDUCTED OUTPUT POWER ............................................................................................................18 4.5 BANDWIDTH &99% OCCUPY BANDWIDTH ...........................................................................................20 4.6 POWER SPECTRAL DENSITY ..............................................................................................................28 4.7 BAND EDGE .......................................................................................................................................36 4.7.1 Conducted test Method ...............................................................................................................36 4.8 SPURIOUS EMISSION .........................................................................................................................45 4.8.1 Radiated Emission Method .........................................................................................................45 5 TEST SETUP PHOTO .............................................................................................................................55 6 EUT CONSTRUCTIONAL DETAILS .......................................................................................................55 - Page 4 of 55 Report No.: ET-26020487E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 1 Test Summary Test Item Section in CFR 47 Result Test by Antenna requirement 47CFR part 15.203 Pass / AC Power Line Conducted Emission 47CFR part 15.207 Pass Jason Huang Conducted Output Power 47CFR part 15.407 (a)(1)/(a)(3) Pass Kara Wu 26dB Bandwidth and 99% Occupied Bandwidth 47CFR part 15.407 (a)(12) Pass Kara Wu 6dB Bandwidth 47CFR part 15.407 (e) Pass Kara Wu Power Spectral Density 47CFR part 15.407(a)(1)/(a)(3) Pass Kara Wu Band Edge 47CFR part 15.407(b)(1)/(b)(4) Pass Kara Wu Spurious Emission 47CFR part 15.205/1…

Text truncated - open the document above for the full version.