OYRCF-924ACAC Wireless Network Card

FCC Statement 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. To assure continued compliance, any changes or modifications not expressly approved by the party. Responsible for compliance could void the user’s authority to operate this equipment. (Example- use only shielded interface cables when connecting to computer or peripheral devices). This equipment complies with Part 15 of the FCC 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 undesired operation. RF warning statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen Four Seas Global Link Network Technology Co., Ltd. Add: Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Date: 2021-4-29 FCC ID: OYRCF-924AC Dear Sir/Madam, We, Shenzhen Four Seas Global Link Network Technology Co., Ltd. Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: AC Wireless Network Card Model no.: CF-924AC V2, CF-821AC, CF-813B, CF-727B, CF-938AC, CF-926AC, CF-926AC PRO, CF-WU785AC, CF-WU783AC, CF-958AC, CF-939AC Sincerely, Name/Title： Raymond Wang/General Manager Company: Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address: Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Phone: 86-0755-83890059 Fax: 86-0755-83890059-808 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2021-4-29> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name OYRCF-924AC CF-924AC V2 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Raymond Wang/General Manager Company: Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address: Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Phone: 86-0755-83890059 Fax: 86-0755-83890059-808 E-Mail: [email protected]

Shenzhen Four Seas Global Link Network Technology Co., Ltd. Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Date: 2021-4-29 FCC ID: OYRCF-924AC Model Number: CF-924AC V2 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To Whom It May Concern, We, Shenzhen Four Seas Global Link Network Technology Co., Ltd. , declare that this EUT (FCC ID: OYRCF-924AC) doesn’t have Ad Hoc mode function on “non-US/Canada frequencies”. In addition. The frequency selection feature is disabled by firmware for devices marked to the US/Canada. For DTS part of this device, only channels 1-11 will be used in North America, Country code selection is disabled. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, Name/Title： Raymond Wang/General Manager Company: Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address: Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Phone: 86-0755-83890059 Fax: 86-0755-83890059-808 E-Mail: [email protected]

Shenzhen Four Seas Global Link Network Technology Co., Ltd. Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021-4-29 To whom it may concern: We, Shenzhen Four Seas Global Link Network Technology Co., Ltd. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: OYRCF-924AC including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Raymond Wang/General Manager Company: Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address: Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Phone: 86-0755-83890059 Fax: 86-0755-83890059-808 E-Mail: [email protected]

FCC ID: OYRCF-924AC TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID: OYRCF-924AC TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT FCC ID: OYRCF-924AC TB-RF-074-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT

FCC ID: OYRCF-924AC TB-RF-074-1.0 Appendix IFCC ID Label Size: 30mm x 16mm Appendix II ID Label Location LOCATION AC Wireless Network Card FCC ID: OYRCF-924AC Model: CF-924AC V2

FCC ID: OYRCF-924AC TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 7 Appearance of PCB Photo 8 Appearance of PCB 2.4G/5G WiFi Ant. A 2.4G/5G WiFi Ant. B FCC ID: OYRCF-924AC TB-RF-074-1.0 Photo 9 Appearance of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TB-MPE179824 Page: 1 of 4 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: OYRCF-924AC 1. Client Information Applicant : Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address : Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China Manufacturer : Shenzhen Four Seas Global Link Network Technology Co., Ltd. Address : Room 607-610, Block B, TAOJINDI Electronic Business Incubation Base, Tenglong Road, Longhua District, Shenzhen, China 2. General Description of EUT EUT Name : AC Wireless Network Card Model No. : CF-924AC V2, CF-821AC, CF-813B, CF-727B, CF-938AC, CF-926AC, CF-926AC PRO, CF-WU785AC, CF-WU783AC, CF-958AC, CF-939AC Sample ID : 20210402-14-1#& 20210402-14-2# Model Difference : All these models are identical in the same PCB, layout and electrical circuit, The only difference is appearance color and model name. Product Description : Operation Frequency: 802.11b/g/n(HT20): 2412MHz~2462MHz 802.11n(HT40): 2422MHz~2452MHz U-NII-1: 5180MHz~5240MHz U-NII-3: 5745MHz~5825MHz Power Rating : USB Input: DC 5V Software Version : N/A Hardware Version : N/A Remark : The antenna gain provided by the applicant, the verified for the RF conduction test provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TB-MPE179824 Page: 2 of 4 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR 2. Antenna Gain Antenna Brand Model Name Type 2.4G/5G Antenna Gain(dBi) ANT. A N/A N/A Dipole 2 ANT. B N/A N/A Dipole 2 Report No.: TB-MPE179824 Page: 3 of 4 TB-RF-074-1.0 3. Calculation: [2.4GHz WLAN] Mode Frequency (MHz) Conducted Output Power (dBm) Tolerance ± (dB) Calculation Value Threshold Value Ant.A Ant.B Ant.A Ant.B Ant.A Ant.B Total IEEE 802.11b 2412 4.07 3.97 4±1 4±1 0.982 0.982 / 3.0 2437 3.42 3.99 4±1 4±1 0.987 0.987 / 3.0 2462 2.73 4.23 3±1 4±1 0.788 0.992 / 3.0 IEEE 802.11g 2412 3.53 4.17 4±1 4±1 0.982 0.982 / 3.0 2437 3.97 4.06 4±1 4±1 0.987 0.987 / 3.0 2462 4.13 4.08 4±1 4±1 0.992 0.992 / 3.0 IEEE 802.11 n HT20 2412 3.13 3.16 3±1 3±1 0.780 0.780 1.560 3.0 2437 2.73 2.86 3±1 3±1 0.784 0.784 1.568 3.0 2462 2.58 3.53 3±1 3±1 0.788 0.788 1.576 3.0 IEEE 802.11 n HT40 2422 3.51 3.57 3±1 3±1 0.782 0.782 1.564 3.0 2437 3.50 3.59 3±1 3±1 0.784 0.784 1.568 3.0 2452 3.44 3.45 3±1 3±1 0.787 0.787 1.574 3.0 Note: At separation distance of ≤5 mm [5GHz WLAN U-NII-1] Mode Frequency (MHz) Conducted Output Power (dBm) Tolerance ± (dB) Calculation Value Threshold Value Ant.A Ant.BAnt.A Ant.B Ant.A Ant.B Total IEEE 802.11a 5180 3.135 3.0323±1 3±1 1.143 1.143 / 3.0 5200 3.130 3.2303±1 3±1 1.146 1.146 / 3.0 5240 3.275 3.0543±1 3±1 1.150 1.150 / 3.0 IEEE 802.11 n HT20 5180 0.989 0.4451±1 1±1 0.721 0.721 1.442 3.0 5200 0.848 0.2031±1 1±1 0.723 0.723 1.446 3.0 5240 0.326 0.5091±1 1±1 0.726 0.726 1.452 3.0 IEEE 802.11 ac VHT20 5180 0.038 0.1331±1 1±1 0.721 0.721 1.442 3.0 5200 0.532 0.1661±1 1±1 0.723 0.723 1.446 3.0 5240 0.276 0.4361±1 1±1 0.726 0.726 1.452 3.0 IEEE 802.11 n HT40 5190 0.734 0.4161±1 1±1 0.722 0.722 1.444 3.0 5230 0.690 0.8281±1 1±1 0.725 0.725 1.450 3.0 IEEE 802.11 ac VHT40 5190 0.247 0.2861±1 1±1 0.722 0.722 1.444 3.0 5230 0.749 0.0271±1 1±1 0.725 0.725 1.450 3.0 IEEE 802.11 ac VHT80 5210 0.864 0.3001±1 1±1 0.724 0.724 1.448 3.0 Note: At separation distance of ≤5 mm Report No.: TB-MPE179824 Page: 4 of 4 TB-RF-074-1.0 [5GHz WLAN U-NII-3] Mode Frequency (MHz) Conducted Output Power (dBm) Tolerance ± (dB) Calculation Value Threshold Value Ant.A Ant.B Ant.A Ant.B Ant.A Ant.B Total IEEE 802.11a 5745 4.105 4.406 4±1 4±1 1.516 1.516 / 3.0 5785 3.306 3.606 4±1 4±1 1.521 1.521 / 3.0 5825 3.769 3.117 4±1 4±1 1.526 1.526 / 3.0 IEEE 802.11 n HT20 5745 0.572 0.538 1±1 1±1 0.760 0.760 1.520 3.0 5785 1.006 0.719 1±1 1±1 0.762 0.762 1.524 3.0 5825 1.399 1.020 1±1 1±1 0.765 0.765 1.530 3.0 IEEE 802.11 ac VHT20 5745 0.448 0.785 1±1 0±1 0.760 0.603 1.363 3.0 5785 1.197 0.648 1±1 0±1 0.762 0.606 1.368 3.0 5825 1.640 0.304 1±1 0±1 0.765 0.765 1.530 3.0 IEEE 802.11 n HT40 5755 0.133 0.817 1±1 0±1 0.760 0.604 1.364 3.0 5795 0.696 -0.180 1±1 0±1 0.763 0.763 1.526 3.0 IEEE 802.11 ac VHT40 5755 0.192 -0.371 1±1 0±1 0.760 0.604 1.364 3.0 5795 0.759 -0.574 1±1 0±1 0.763 0.606 1.369 3.0 IEEE 802.11 ac VHT80 5775 0.379 -0.196 1±1 0±1 0.762 0.605 1.367 3.0 Note: At separation distance of ≤5 mm 4. Summary simultaneous transmission information Modulation Type Work Frequency Band Transmit Antenna Antenna A Antenna B Synchronization transmit Antenna A Antenna B IEEE 802.11a U-NII-1/ U-NII-3 Yes Yes No IEEE 802.11b 2.4G Yes Yes No IEEE 802.11g 2.4G Yes Yes No IEEE802.11n HT20 2.4G Yes Yes Yes IEEE 802.11n HT20 U-NII-1/ U-NII-3 Yes Yes Yes IEEE 802.11n HT40 2.4G Yes Yes Yes IEEE 802.11n HT40 U-NII-1/ U-NII-3 Yes Yes Yes IEEE 802.11 ac VHT20 U-NII-1/ U-NII-3 Yes Yes Yes IEEE 802.11 ac VHT40 U-NII-1/ U-NII-3 Yes Yes Yes IEEE 802.11 ac VHT80 U-NII-1/ U-NII-3 Yes Yes Yes The EUT shares one RF chipset and equipped with two same antennas, the 2.4G WLAN and the 5G WLAN can not transmit at the same time. 4 Conclusion: The measurement results comply with the RSS-102§4 Table 4 for the uncontrolled RF Exposure and SAR Exclusion Threshold per…

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Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC179822 Page: 1 of 84 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Radio Test Report FCC ID: OYRCF-924AC Original Grant Report No. : TB-FCC179822 Applicant : Shenzhen Four Seas Global Link Network Technology Co., Ltd . Equipment Under Test (EUT) EUT Name : AC Wireless Network Card Model No. : CF-924AC V2 Series Model No. : CF-821AC, CF-813B, CF-727B, CF-938AC, CF-926AC, CF-926AC PRO, CF-WU785AC, CF-WU783AC, CF-958AC, CF-939AC Brand Name : ---- Sample ID : 20210402-14-1#& 20210402-14-2# Receipt Date : 2021-04-15 Test Date : 2021-04-16 to 2021-04-28 Issue Date : 2021-04-29 Standards : FCC Part 15, Subpart C 15.247 Test Method : ANSI C63.10: 2013 KDB 558074 D01 15.247 Meas Guidance v05r02 KDB 662911 D01 Multiple Transmitter Output v02r01 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above. Test/Witness Engineer : Rebeca Engineer Supervisor : Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TB-FCC179822 Page: 2 of 84 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................. 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 6 1.4 Description of Support Units .............................................................................................. 6 1.5 Description of Test Mode .................................................................................................... 7 1.6 Description of Test Software Setting ................................................................................ 8 1.7 Measurement Uncertainty .................................................................................................. 9 1.8 Test Facility ........................................................................................................................... 9 2. TEST SUMMARY ..................................................................................................................... 10 3. TEST SOFTWARE ................................................................................................................... 10 4. TEST EQUIPMENT .................................................................................................................. 11 5. CONDUCTED EMISSION TEST ........................................................................................... 12 5.1 Test Standard and Limit .................................................................................................... 12 5.2 Test Setup ........................................................................................................................... 12 5.3 Test Procedure ................................................................................................................... 13 5.4 Deviation From Test Standard ......................................................................................... 13 5.5 EUT Operating Mode ........................................................................................................ 13 5.6 Test Data ............................................................................................................................. 13 6. RADIATED EMISSION TEST ................................................................................................ 14 6.1 Test Standard and Limit .................................................................................................... 14 6.2 Test Setup ........................................................................................................................... 15 6.3 Test Procedure ................................................................................................................... 16 6.4 Deviation From Test Standard ......................................................................................... 17 6.5 EUT Operating Condition ................................................................................................. 17 6.6 Test Data ............................................................................................................................. 17 7. RESTRICTED BANDS REQUIREMENT ............................................................................. 18 7.1 Test Standard and Limit .................................................................................................... 18 7.2 Test Setup ........................................................................................................................... 18 7.3 Test Procedure ................................................................................................................... 19 7.4 Deviation From Test Standard ......................................................................................... 19 7.5 EUT Operating Condition ................................................................................................. 19 7.6 Test Data ............................................................................................................................. 19 8. BANDWIDTH TEST ..................................…

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FCC ID: OYRCF-924AC TB-RF-074-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission (Above 1 GHz) Photo of Setup for Radiated Emission (Below 1 GHz) FCC ID: OYRCF-924AC TB-RF-074-1.0 Photo of Setup for Conducted Emission -----END OF REPORT-----