2AHRD-EPAC1675802.11ac Dual-Band Wi-Fi USB Adapter

Before a new model adapter is a available for sale to the public, it must be tested and certified to the FCC that it does not exceed the exposure limit established by the FCC, Tests for each adapter are performed in positions and locations as required by the FCC. For body worn operation, this adapter has been tested and meets the FCC RF exposure guidelines when used with an accessory designated for this product or when used with an accessory that contains no metal and that positions the adapter a minimum of 5 mm from the body. FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device 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. Note: 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. Specific Absorption Rate (SAR) information SAR tests are conducted using standard operating positions accepted by the FCC with the adapter transmitting at its highest certified power level in all tested frequency bands, although the SAR is determined at the highest certified power level, the actual SAR level of the adapter while operating can be well below the maximum value, in general, the closer you are to a wireless adapter antenna, the lower the power output.

Shenzhen EDUP Electronics Technology Co.,Ltd. 6 Floor, #6 Building, No.48, Kangzheng Road Liantang Industrial Area, Buji Town Shenzhen, China Tel:0755-83648350 Fax : 0755-835 82 58 7 E-mail: [email protected] Date: 2020-1-13 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern Dear Sir/Madam, We, Shenzhen EDUP Electronics Technology Co.,Ltd., hereby authorize Bay Area Compliance Laboratories Corp. to act as a laboratory for testing and test report generation for the following project(s): (Product name: 802.11AC Dual-Band Wi-Fi USB Adapter, Model name: EP-AC1675, WT-AC1675, EPLOVE-AC1675, AC1900, EP-AC1622, WT-AC1622, EPLOVE-1622, EP-1676, WT-1676, EPLOVE-1676, FCC ID: 2AHRD-EPAC1675 The ch ipset TL8814AU supports 4T4R function, but for this device, the TX & RX function for 5G and TX function for 2.4G of ANT3 were disable by software.only supports 3T4R function for 2.4G and 3T3R for 5G with this device. Sincerely, Signature: Printed Name: Yan Liang ADD:

Shenzhen EDUP Electronics Technology Co.,Ltd. ADD: 6 Floor, #6 Building, No.48, Kangzheng Road Liantang Industrial Area, Buji Town Shenzhen, China TEL: 0755-83648350 FAX: 0755-83582587 Email: [email protected] Date: 2019-11-21 To: FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Declaration Subject: FCC ID: 2AHRD-EPAC1675 declaration of frequency bands restriction Dear Sir or Madam: We, Shenzhen EDUP Electronics Technology Co.,Ltd., hereby declare that our product 802.11AC Dual-Band Wi-Fi USB Adapter, Model Number: EP-AC1675, WT-AC1675, EPLOVE-AC1675, AC1900, EP-AC1622, WT-AC1622, EPLOVE-1622, EP-1676, WT-1676, EPLOVE-1676 have the ability to work in 2.4G and 5G 4 frequency bands: 5150 MHz~5250 MHz,5250 MHz~5350MHz,5470 MHz~5725 MHz, 5725 MHz~5850 MHz. For the purpose of marketing, the frequency of the product sold in U.S. are programmed and locked to work only in 5725 MHz~5850 MHz, The other frequency bands 5150 MHz~5250 MHz, 5250 MHz~5350MHz, 5470 MHz~5725 MHz are disabled by firmware in factory. The end user or any other parties cannot have the capability to activate the other frequency bands. We applied for testing only frequency bands: 2.4G and 5745 MHz~5825MHz for the United States this time in BACL. Please contact me if you have any question. Signature: Yan Liang Manager

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS

802.11AC Dual‐Band Wi‐Fi USB Adapter Model: EP‐AC1675 FCC ID: 2AHRD‐EPAC1675 MADE IN CHINA

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS ANT Chain 0 2.4G&5.8G TX&RX Chain 1 2.4G&5.8G TX&RX Chain 2 2.4G&5.8G TX&RX Chain 3 2.4G RX RF Chip USB Base

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Dongguan). This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*”. SAR EVALUATION REPORT For Shenzhen EDUP Electronics Technology Co.,Ltd. 6 Floor, #6 Building, No.48, Kangzheng Road Liantang Industrial Area, Buji Town Shenzhen, China FCC ID: 2AHRD-EPAC1675 Report Type: Original Report Product Type: 802.11AC Dual-Band Wi-Fi USB Adapter Report Number: RDG191119005-20 Report Date: 2020-02-14 Reviewed By: Rocky Xiao RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191119005-20 SAR Evaluation Report 2 of 48 Attestation of Test Results EUT Information EUT Description 802.11AC Dual-Band Wi-Fi USB Adapter Tested Model EP-AC1675 Multiple Models: WT-AC1675,EPLOVE-AC1675,AC1900,EP-AC1622, WT-AC1622,EPLOVE-1622,EP-1676,WT-1676,EPLOVE-1676 FCC ID 2AHRD-EPAC1675 Serial Number RDG191119005-SA-S1 Test Date 2019-12-10 ~ 2020-01-20 MODE Max. SAR Level(s) Reported(W/kg) Limit (W/kg) WLAN 2.4G 1g Body SAR 0.37 1. 6 WLAN 5.8G 1g Body SAR 0.31 Simultaneous 1g Body SAR 1.07 Applicable Standards FCC 47 CFR part 2.1093 Radiofrequency radiation exposure evaluation: portable devices RF Exposure Procedures: TCB Workshop April 2019 IEEE1528:2013 IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques IEC 62209-2:2010 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-Human models, instrumentation, and procedures-Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz) KDB procedures KDB 447498 D01 General RF Exposure Guidance v06 KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04 KDB 865664 D02 RF Exposure Reporting v01r02 KDB 447498 D02 SAR Procedures for Dongle Xmtr v02r01 KDB 248227 D01 802 11 Wi-Fi SAR v02r02 Note: This wireless device has been shown to be capable of compliance for localized specific absorption rate (SAR) for General Population/Uncontrolled Exposure limits specified in FCC 47 CFR part 2.1093 and has been tested in accordance with the measurement procedures specified in IEEE 1528-2013 and RF exposure KDB procedures. The results and statements contained in this report pertain only to the device(s) evaluated. Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191119005-20 SAR Evaluation Report 3 of 48 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 EUT DESCRIPTION .................................................................................................................................................... 5 TECHNICAL SPECIFICATION ......................................................................................................................................... 5 REFERENCE, STANDARDS, AND GUIDELINES .................................................................................................. 6 SAR LIMITS ................................................................................................................................................................. 7 FACILITIES .................................................................................................................................................................. 8 DESCRIPTION OF TEST SYSTEM .......................................................................................................................... 9 EQUIPMENT LIST AND CALIBRATION ............................................................................................................. 15 EQUIPMENTS LIST & CALIBRATION INFORMATION .................................................................................................... 15 SAR MEASUREMENT SYSTEM VERIFICATION .............................................................................................. 16 LIQUID VERIFICATION ............................................................................................................................................... 16 SYSTEM ACCURACY VERIFICATION ........................................................................................................................... 18 SAR SYSTEM VALIDATION DATA ..................................................................................................................... 19 EUT TEST STRATEGY AND METHODOLOGY ................................................................................................. 23 TEST POSITIONS FOR DEVICE OPERATING NEXT TO A PERSON’S EAR........................................................................ 23 CHEEK/TOUCH POSITION ........................................................................................................................................... 24 EAR/TILT POSITION ................................................................................................................................................... 24 TEST POSITIONS FOR BODY-WORN AND OTHER CONFIGURATIONS .............................................................................. 25 TEST DISTANCE FOR SAR EVALUATION ...........................................................................................…

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PROBE CALIBRATION CERTIFICATES DIPOLE CALIBRATION CERTIFICATES

Report No.: RDG191119005-20 Page 1 of 53 EUT Antenna Opened: Test Plot 1#: WLAN 2.4G Mode B_ Horizontal-Down _Chain 0 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; εr = 40.191; ρ = 1000 kg/m3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (151x51x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.500 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 3.394 V/m; Power Drift = 0.01 dB Peak SAR (extrapolated) = 0.653 W/kg SAR(1 g) = 0.306 W/kg; SAR(10 g) = 0.150 W/kg Maximum value of SAR (measured) = 0.511 W/kg 0 dB = 0.511 W/kg = -2.92 dBW/kg Report No.: RDG191119005-20 Page 2 of 53 Test Plot 2#: WLAN 2.4G Mode B_ Horizontal-Up _Chain 0 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; εr = 40.191; ρ = 1000 kg/m3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x51x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.691 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 3.536 V/m; Power Drift = -0.17 dB Peak SAR (extrapolated) = 0.722 W/kg SAR(1 g) = 0.326 W/kg; SAR(10 g) = 0.156 W/kg Maximum value of SAR (measured) = 0.560 W/kg 0 dB = 0.560 W/kg = -2.52 dBW/kg Report No.: RDG191119005-20 Page 3 of 53 Test Plot 3#: WLAN 2.4G Mode B_ Vertical-Front _Chain 0 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; εr = 40.191; ρ = 1000 kg/m3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (151x51x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.0468 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 3.364 V/m; Power Drift = 0.11 dB Peak SAR (extrapolated) = 0.0530 W/kg SAR(1 g) = 0.039 W/kg; SAR(10 g) = 0.032 W/kg Maximum value of SAR (measured) = 0.0484 W/kg 0 dB = 0.0484 W/kg = -13.15 dBW/kg Report No.: RDG191119005-20 Page 4 of 53 Test Plot 4#: WLAN 2.4G Mode B_ Vertical-Back _Chain 0 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; εr = 40.191; ρ = 1000 kg/m3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (161x61x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.0434 W/kg Zoom Scan (6x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 3.388 V/m; Power Drift = 0.16 dB Peak SAR (extrapolated) = 0.0520 W/kg SAR(1 g) = 0.037 W/kg; SAR(10 g) = 0.032 W/kg Maximum value of SAR (measured) = 0.0455 W/kg 0 dB = 0.0455 W/kg = -13.42 dBW/kg Report No.: RDG191119005-20 Page 5 of 53 Test Plot 5#: WLAN 2.4G Mode B_ Body Top _Chain 0 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; εr = 40.191; ρ = 1000 kg/m3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: 2019/10/22  Sensor-Surface: 1.4mm (Mechanical Surface Detection)  Electronics: DAE4 Sn772; Calibrated: 2019/10/6  Phantom: Twin SAM; Type: Twin SAM V5.0; Serial: TP:1412  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (61x51x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.166 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 7.487 V/m; Power Drift = -0.09 dB Peak SAR (extrapolated) = 0.189 W/kg SAR(1 g) = 0.096 W/kg; SAR(10 g) = 0.053 W/kg Maximum value of SAR (measured) = 0.148 W/kg 0 dB = 0.148 W/kg = -8.30 dBW/kg Report No.: RDG191119005-20 Page 6 of 53 Test Plot 6#: WLAN 2.4G Mode B_ Horizontal-Down _Chain 1 DUT: 802.11AC Dual-Band Wi-Fi USB Adapter; Type: EP-AC1675; Serial: RDG191119005-SA-S1 Communication System: IEEE 802.11b; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.815 S/m; ε r = 40.191; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: EX3DV4 - SN7329; ConvF(7.6, 7.6, 7.6) @ 2437 MHz; Calibrated: …

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Report No.: RDG191119005-20 Page 1 of 7 APPENDIX B EUT TEST POSITION PHOTOS Liquid depth ≥ 15cm Phantom Type: Twin SAM; Model: Twin SAM V5.0; S/N: 1412 Report No.: RDG191119005-20 Page 2 of 7 EUT Antenna Opened: Horizontal-Down Setup Photo(5mm) Horizontal-Up Setup Photo(5mm) 5 mm 5 mm Report No.: RDG191119005-20 Page 3 of 7 Vertical-Front Photo(5mm) Vertical-Back Setup Photo(5mm) 5 mm 5 mm Report No.: RDG191119005-20 Page 4 of 7 Body Top Setup Photo (5mm) 5 mm Report No.: RDG191119005-20 Page 5 of 7 EUT Antenna Closed: Horizontal-Down Setup Photo(5mm) Horizontal-Up Setup Photo(5mm) 5 mm 5 mm Report No.: RDG191119005-20 Page 6 of 7 Vertical-Front Photo(5mm) Vertical-Back Setup Photo(5mm) 5 mm 5 mm Report No.: RDG191119005-20 Page 7 of 7 Body Top Setup Photo (5mm) 5 mm

FCC PART 15.407 TEST REPORT For SHENZHEN EDUP ELECTRONICS TECHNOLOGY CO.,LTD. 6 Floor, #6 Building, No.48, Kangzheng Road Liantang Industrial Area, Buji Town Shenzhen, China Report Type: Original Report Product Name: 802.11AC Dual-Band Wi-Fi USB Adapter Re port Number: RDG191119005-00B Re port Date: 2019-12-20 Reviewed By: Gavin Xu RF Engineer Test Laboratory: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn FCC ID:2AHRD-EPAC1675 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191119005-00B Page 2 of 79 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 DECLARATIONS ............................................................................................................................................................ 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 EQUIPMENT MODIFICATIONS ..................................................................................................................................... 11 LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ...................................................................................................... 11 SUPPORT CABLE LIST AND DETAILS .......................................................................................................................... 11 BLOCK DIAGRAM OF TEST SETUP .............................................................................................................................. 12 SUMMARY OF TEST RESULTS ............................................................................................................................. 13 FCC §15.407 (f) & §1.1310 & §2.1093- RF EXPOSURE ............................................................................................. 14 APPLICABLE STANDARD ............................................................................................................................................ 14 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 15 FCC §15.407 (b) (6) §15.207 (a) – CONDUCTED EMISSIONS ............................................................................. 16 APPLICABLE STANDARD ............................................................................................................................................ 16 EUT SETUP ................................................................................................................................................................ 16 EMI TEST RECEIVER SETUP ....................................................................................................................................... 16 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 16 TEST EQUIPMENT LIST AND DETAILS ......................................................................................................................... 17 TEST PROCEDURE ...................................................................................................................................................... 17 TEST DATA ................................................................................................................................................................ 17 FCC §15.209, §15.205 & §15.407(b) –UNWANTED EMISSION ............................................................................ 20 APPLICABLE STANDARD ............................................................................................................................................ 20 EUT SETUP ................................................................................................................................................................ 21 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 22 TEST PROCEDURE .............................................................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View