2ACFF-UC3101USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER)

Receiver (UC3101R) connection: 1. Make sure the display is switched to the corresponding HDMI/VGA mode before use 2. Insert the HDMI and VGA M/M cable into the display HDMI input port and connect one end to the product 3. Plug the charger or USB power supply through the usb-c interface 4. At this point, there will be a user interface display on the monitor, and the screen can be automatically cast after waiting for the transmitter to work Transmitter (UC3101T) connection: 1. Plug usb-c /M into the usb-c output port of the phone/tablet/laptop (the phone/computer should support video output) 2. Insert the usb drive into usb3.0a /F to connect the usb drive data 3. Insert SD/TF into the card holder to realize data connection 4. Make sure that the PIN PIN in the product does not sag or bend during use, so as not to affect the insertion 5. Please pay attention not to splash liquid into the connector, so as not to affect its performance 6. The product should be placed in a dry place, not in a wet environment a. Why is there no video output? 1. Pls check the connection is good. 2. Pls use standard HDMI or VGA cable. 3. The automatic screen casting link will take about 10 seconds, please wait patiently. 4. Mobile phone/computer supports video output 5. The default of the factory is that it is matched. If there is no problem with the above four points, Please re-pair and reuse b. Why is there no audio output from HDMI port? 1. Pls make sure that there is audio output function on the monitor. 2. Pls set the external monitor as default audio output device. C. How to use the products in pairs? 1. After the receiver is powered, press 5 seconds to enter the matching mode. At this point, the screen display switches to waiting for pairing... 2. After the emitter is inserted into the device for 20 seconds, long press 5 seconds to enter the matching mode 3. When the receiver and transmitter enter the matching mode at the same time, it will automatically match. The matching time is about 5-15 seconds 4. After the pairing is successful, the screen will automatically switch to the normal projection mode Transmitter: 1. USB 3.0 5Gb/s data transfer, downward compatible with USB2.0; power supply up to 4.5W Max. 2. SD/TF Card Reader Read: 50 - 104MB/s; Write: 30 - 40MB/s； affected by card’s quality. 3. WiFi supports wireless dual frequency Protocol standard 802.11a/b/g/n/ac Receiver: 1. HDMI 1920X1080P/60HZ, downward compatible with 1080P, 1080I, 720P. HDMI and VGA can work together. 2. USB-C USB charger or USB port power supply. 3. VGA: 1920X1080P/60HZ, downward compatible with 1080P, 1080I, 720P. 4. 3.5mm Audio Support max transmission distance 10 meters USB-C multi-function wireless display screen projector is composed of transmitter and receiver, which must be used together with the adapted receiver. The built-in conversion chip of the transmitter converts the DP signal in type-c into MIPI signal and I2S, and encodes the MIPI signal and I2S together into audio and video stream, which is then sent to the adaptive receiver via WiFi using a private protocol. Input devices include mobile phones, tablet computers and laptops that support usb-c interface for video output. Usb-c interface is small in size and supports forward and backward interpolation and data transmission. HDMI/VGA output terminal supports up to 1080P/60HZ video resolution. UC3101 USB-C Hub wi th Wirelss Display Transmi tt er + Receiver Audio USB-C VGA USB-A x 2 Mobile Notebook Tablet PC Monitor Project or 1 2 3 4 5 Receiver ： 1. Function key 2. USB-C （Power supply port） 3. 3.5mm Audio 4. VGA 5. 1 4 3 2 Transmitter ： 1. Power indicator light 2. USB3.0-A 3. SD&TF Card Reader 4. Function key Short press: change the screen state(screen/disconnect); Long press for 5 seconds: enter matching mode; Long press for 10 seconds: restore factory Settings. 5V2A Main chip Par ame ter Wi Working Frequency Oper ating System DDR Flash Memory Resolution Transmission Speed Pr ot oc ol Standard Int erf ac e Power Supply 1080P 1 Mbps 802.11a/b/g/n/ ac HDMI/VGA 5V /2A USB-C interf ac e TX unit: RV1108 RX unit: RK3036 2.4G or 5G Linux 128MB 16MB FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. 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. Specific Absorption Rate (SAR) information: This smart phone meets the government's requirements for exposure to radio waves. The guidelines are based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin des…

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FCC Software Configuration Control Declaration Rev1.0.docx C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED FCC Software Configuration Control Declaration Date: Jul. 24, 2020 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Product: USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model No.: UC3101 Regarding FCC Country Code Selection guidelines identified in KDB 594280 D02 v01r03. “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. Date: Jul. 24, 2020 Name: Jon Zhang Title: Engineer Signature of applicant

C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Agent Authorization Company: C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Address: Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Product Name: USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model Number(s): UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA- 70890, WLD15G Product Description: USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Jul. 24, 2020 Name: Jon Zhang Title: Engineer Company: C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED

C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Off i ce of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jul. 24, 2020 Subject; Request for Confidentiality FCC ID: 2ACFF-UC3101 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Description It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Jon Zhang Title: Engineer

Model Difference Declaration To Whom It May Concern, We, C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED(USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER)) Trademark:N/A; Model Number: UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA-70890, WLD15G All model’s the function, s oftware and electric circuit are the same, only model named different for commercial purpose. Test sample model: UC3101 Please contact me if you have any question. Name: Jon Zhang Date: Jul. 24, 2020 Title: Engineer Signature of applicant:

Annex A External Photos Report No.:HK2005211178-1E/2E/3E Page 1 of 3 Report No.:HK2005211178-1E/2E/3E Page 2 of 3 Report No.:HK2005211178-1E/2E/3E Page 3 of 3

FCC ID LABEL: Ca. 5mm x 10mm Label Location FCC ID: 2ACFF-UC3101

Annex B Internal Photo Report No.:HK2005211178-1E/2E/3E Page 1 of 3 Report No.HK2005211178-1E/2E/3E Page 2 of 3 Antenna Report No.HK2005211178-1E/2E/3E Page 3 of 3

Report No. Client Addr e Produ Date She : 18220WC Name ess uct Name enzhen C00109305 FCC : C : F In C : U D : A n Anbo FCC ID: 2A C SAR C-SMARTLIN Floor 2 & 3, ndustrial Are China USB-C HUB DISPLAY(TR Aug. 05, 202 tek Co ACFF-UC31 R Tes NK INFORM No. 43 Fact ea, Henggan WITH WIR RANSMITTE 20 omplian 01 Page 1 st Re MATION TEC ory Building ng Town, Lo ELESS ER+RECEIV nce Lab of 83 eport CHNOLOGY g, Guangda R onggang Dis VER) borato Y CO., LIMIT Road, 189 trict, Shenz h ry Lim TED hen, ited Report No.: 18220WC00109305 FCC ID: 2ACFF-UC3101 Page 2 of 83 Contents 1. Statement of Compliance ............................................................................................... 6 2. General Information ........................................................................................................ 7 2.1 Client Information ............................................................................................................................................. 7 2.2 Description of Equipment Under Test (EUT) ..................................................................................................... 7 2.3 Device Category and SAR Limits ..................................................................................................................... 9 2.4 Applied Standard .............................................................................................................................................. 9 2.5 Environment of Test Site ................................................................................................................................... 9 2.6 Test Configuration ............................................................................................................................................. 9 3. Specific Absorption Rate (SAR) ................................................................................... 10 3.1 Introduction ..................................................................................................................................................... 10 3.2 SAR Definition ................................................................................................................................................ 10 4. SAR Measurement System .......................................................................................... 11 4.1 E-Field Probe .................................................................................................................................................. 12 4.2 Data Acquisition Electronics (DAE) ................................................................................................................. 12 4.3 Robot .............................................................................................................................................................. 13 4.4 Measurement Server ...................................................................................................................................... 14 4.5 Phantom ......................................................................................................................................................... 14 4.6 Device Holder ................................................................................................................................................. 16 4.7 Data Storage and Evaluation .......................................................................................................................... 17 5. Test Equipment List ...................................................................................................... 19 6. Tissue Simulating Liquids ............................................................................................. 20 7. System Verification Procedures ................................................................................... 22 8. EUT Testing Position .................................................................................................... 24 8.1 Body Worn Position ........................................................................................................................................ 24 9. Measurement Procedures ............................................................................................ 25 9.1 Spatial Peak SAR Evaluation ......................................................................................................................... 25 9.2 Power Reference Measurement ..................................................................................................................... 26 9.3 Area Scan Procedures ................................................................................................................................... 26 9.4 Zoom Scan Procedures .................................................................................................................................. 27 9.5 Volume Scan Procedures ............................................................................................................................... 28 9.6 Power Drift Monitoring .................................................................................................................................... 28 10. Conducted Power ......................................................................................................... 29 11. Antenna Location ........................................................................................................... 32 12. SAR Test Results Summary ......................................................................................... 33 13. Simultaneous Transmission Analysis ........................................................................... 35 Simultaneous TX SAR Considerations ............................................................................................................................ 35 Evaluation of Simultaneous SAR .................................................…

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Report No.: HK2005211178-2E FCC TEST REPORT Test report On Behalf of C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED For USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model No.: UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA-70890, WLD15G FCC ID: 2ACFF-UC3101 Prepared for : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: May. 20, 2020 ~May. 27, 2020 Date of Report: May. 27, 2020 Report Number: HK2005211178-2E Report No.: HK2005211178-2E Page 2 of 63 TEST RESULT CERTIFICATION Applicant’s name .................. : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Address .................................. : Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Manufacture's Name ............. : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Address .................................. : Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Product description Trade Mark: N/A Product name ............................ : USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model and/or type reference . : UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA-70890, WLD15G Standards .............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.407 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ : Date (s) of performance of tests ............. : May. 20, 2020 ~May. 27, 2020 Date of Issue ........................................... : May. 27, 2020 Test Result ............................................... : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Report No.: HK2005211178-2E Page 3 of 63 TABLE OF CONTENTS 1. Test Result Summary ............................................................................... 5 1.1. TEST PROCEDURES AND RESULTS ............................................................................................... 5 1.2. TEST FACILITY .................................................................................................................................. 5 1.3. MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. EUT Description ........................................................................................ 7 2.1. GENERAL DESCRIPTION OF EUT ................................................................................................... 7 2.2. OPERATION FREQUENCY EACH OF CHANNEL ........................................................................................... 8 2.3. OPERATION OF EUT DURING TESTING .................................................................................................... 8 2.4. DESCRIPTION OF TEST SETUP ....................................................................................................... 9 3. Genera Information ................................................................................. 10 3.1. TEST ENVIRONMENT AND MODE ............................................................................................................ 10 3.2. DESCRIPTION OF SUPPORT UNITS ........................................................................................................ 11 4. Test Results and Measurement Data .................................................... 12 4.1. CONDUCTED EMISSION ........................................................................................................................ 12 4.2. MAXIMUM CONDUCTED OUTPUT POWER .............................................................................................. 16 4.3. 6DB EMISSION BANDWIDTH ................................................................................................................. 19 4.4. 26DB BANDWIDTH AND 99% OCCUPIED BANDWIDTH ............................................................................ 20 4.5. POWER SPECTRAL DENSITY ................................................................................................................ 27 4.6. BAND EDGE ......................................................................................................................................... 34 4.7. SPURIOUS EMISSION ........................................................................................................................... 49 4.8. FREQUENCY STABILITY MEASUREMENT ................................................................................................ 57 ANTENNA REQUIREMENT ...................................................................................................................... 60 4.9. PHOTOGRAPHS OF TEST SETUP ........................................................................................................... 61 4.10. PHOTOS OF THE EUT ..................................................................................................................... 63 Report No.: HK2005211178-2E Page 4 of 63 ** Modifited History ** Revison Description Issued Data Remark Revsion 1.0 Initial Test Report Release May. 27, 2020 Jason Zhou Report No.: HK2005211178-2E Page 5 of 63 1. Test Result Su…

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Report No.: HK2005211178-3E FCC TEST REPORT Test report On Behalf of C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED For USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model No.: UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA-70890, WLD15G FCC ID: 2ACFF-UC3101 Prepared for : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: May. 20, 2020 ~May. 27, 2020 Date of Report: May. 27, 2020 Report Number: HK2005211178-3E Report No.: HK2005211178-3E Page 2 of 61 TEST RESULT CERTIFICATION Applicant’s name .................. : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Address .................................. : Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Manufacture's Name ............. : C-SMARTLINK INFORMATION TECHNOLOGY CO., LIMITED Address .................................. : Floor 2 & 3, No. 43 Factory Building, Guangda Road, 189 Industrial Area, Henggang Town, Longgang District, Shenzhen, China Product description Trade Mark: N/A Product name ............................ : USB-C HUB WITH WIRELESS DISPLAY(TRANSMITTER+RECEIVER) Model and/or type reference . : UC3101, 1481-900(USM31-WHVC2AUST3-CB01B), UC3101A, UC3101B, DA-70890, WLD15G Standards .............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.407 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ : Date (s) of performance of tests ............. : May. 20, 2020 ~May. 27, 2020 Date of Issue ........................................... : May. 27, 2020 Test Result ............................................... : Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Report No.: HK2005211178-3E Page 3 of 61 TABLE OF CONTENTS 1. Test Result Summary ............................................................................... 5 1.1. TEST PROCEDURES AND RESULTS ............................................................................................... 5 1.2. TEST FACILITY .................................................................................................................................. 5 1.3. MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. EUT Description ........................................................................................ 7 2.1. GENERAL DESCRIPTION OF EUT ................................................................................................... 7 2.2. OPERATION FREQUENCY EACH OF CHANNEL ........................................................................................... 8 2.3. OPERATION OF EUT DURING TESTING .................................................................................................... 8 2.4. DESCRIPTION OF TEST SETUP ....................................................................................................... 9 3. Genera Information ................................................................................. 10 3.1. TEST ENVIRONMENT AND MODE ............................................................................................................ 10 3.2. DESCRIPTION OF SUPPORT UNITS ........................................................................................................ 11 4. Test Results and Measurement Data .................................................... 12 4.1. CONDUCTED EMISSION ........................................................................................................................ 12 4.2. MAXIMUM CONDUCTED OUTPUT POWER .............................................................................................. 16 4.3. 6DB EMISSION BANDWIDTH ................................................................................................................. 18 4.4. 26DB BANDWIDTH AND 99% OCCUPIED BANDWIDTH ............................................................................ 25 4.5. POWER SPECTRAL DENSITY ................................................................................................................ 26 4.6. BAND EDGE ......................................................................................................................................... 33 4.7. SPURIOUS EMISSION ........................................................................................................................... 48 4.8. FREQUENCY STABILITY MEASUREMENT ................................................................................................ 56 4.9. ANTENNA REQUIREMENT ............................................................................................................. 58 4.10. PHOTOGRAPHS OF TEST SETUP ........................................................................................................... 59 4.11. PHOTOS OF THE EUT ..................................................................................................................... 61 Report No.: HK2005211178-3E Page 4 of 61 ** Modifited History ** Revison Description Issued Data Remark Revsion 1.0 Initial Test Report Release May. 27, 2020 Jason Zhou Report No.: HK2005211178-3E Page 5 of 61 1. Test Result Su…

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Test Model：UC3101 Radiated Emission Conducted Emission