Partilink GRA-HU2HU3 User manual

HDMI 2.0 to 4K@30Hz USB-C Capture Pro
GRA-HU2HU3
User Manual (210511 v . 1)
www.partilink.com

Contents
1. Overview-----------------------------------------------------------------------------03
2. Features------------------------------------------------------------------------------03
3. Specification ------------------------------------------------------------------------04
4. System Requirements------------------------------------------------------------05
5. Installation---------------------------------------------------------------------------05
6. Capture Operation for Windows OS with OBS ----------------------------06
6.1 Video Setting--------------------------------------------------------------07
6.2 Audio Setting---------------------------------------------------------------08
7. Capture Operation for Mac OS with OBS-----------------------------------11
7.1 Video Setting--------------------------------------------------------------11
7.2 Audio Setting---------------------------------------------------------------13
8. Package Contents-----------------------------------------------------------------14

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1. Overview
Partilink GRA-HU2HU3, HDMI 2.0 to 4K@30Hz USB-C Capture Pro, is designed
to capture 4K@60Hz HDMI video then uplink 4K@30Hz data to the connected
computer via USB-C. It allows the user to capture video from HDMI sources such
as PS4, XBOX, Switch, camera …etc. for filing, re-editing and streaming on
connected PC, laptop and tablet.
With this tool, streaming media is made easy to capture every sound and
movement beautifully. This is a professional level capture tool for gamer or
YouTuber to realize the captured video professionally in front of the audiences.
2. Features
•HDMI 2.0 input supports 4K@60Hz and HDR
•HDMI 2.0 loop-out port supports 4K@60Hz and HDR
•Video captures resolution up to 3840x2160@30Hz or 1920x1080@120Hz
•Supports deep color (36-bit color)
•Supports USB 3.1 Type-C Gen1
•Supports UVC 1.0
•Supports audio LINE-IN
•Supports AUDIO headset (TRRS only)
•Supports USB port power supply, no external power supply required
•Compatible with third-party applications, such as QuickTime, OBS, XSplit, vMix, Zoom,
Skype, Gamecaster, Broadcaster...etc.

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3. Specification
MODEL NO.
GRA-HU2HU3
INPUT INTERFACE
HDMI 2.0 Type-A x 1
OUTPUT INTERFACE
USB Type-C (SuperSpeed) UVC x 1,
HDMI 2.0 Type-A x 1
INPUT/ OUTPUT
(LOOPOUT)
RESOLUTION
3840x2160p 60/50/30/25/24Hz
2560x1440p 144/60Hz
1920x1080p 240/ 144/120/60/50/30/25/24Hz
1920x1080i 60/50Hz
1280x720p 60/50Hz
720x576p 50Hz
720x480p 60Hz
720(1440)x576i 50Hz
720(1440)x480i 60Hz
640x480p 60Hz
CAPTURE
RESOLUTION
USB3.0
SuperSpeed
NV12
YUY2
3840x2160p 30 Hz
2560x1440p 60 Hz
1920x1080p 120/60/50/30/25 Hz
1280x720p 60 Hz
720x480p 60 Hz
720x576p 50 Hz
640x480p 60 Hz
2560x1440p 50 Hz
1920x1080p 60/50/30/25 Hz
1280x720p 60 Hz
720x480p 60 Hz
720x576p 50 Hz
640x480p 60 Hz
USB2.0
Hi-Speed
1280x720p 30 Hz
720x576p 50 Hz
720x480p 60 Hz
640x480p 60 Hz
1280x720p 30 Hz
720x576p 50 Hz
720x480p 60 Hz
640x480p 60 Hz
COLOR SAMPLING
RGB, YUV (YCbCr444, YCbCr422, YCbCr420)
VIDEO FORMAT
NV12 , YUY2
UAC AUDIO OUTPUT
Stereo / 16-bit PCM encoded audio at 48KHz sampling rates
AUDIO INTERFACE
3.5mm Headset (TRRS only)
LINE-IN: 3.5 mm input
SYSTEM
REQUIREMENTS
CPU
i5 Dual Core 2.8GHz or higher
RAM
4GB or higher
OS
Windows 8 and above
MacOS 10.13 and above
ENVIRONMENT
Operating Temperature
0℃~ 45℃
Operating Humidity
20% ~ 90%
DIMENSION
106 x 106.4 x 21m (W x L x H including rubber pad)
WEIGHT
235 G
ACCESSORIES
USB-C to USB-A Cable x 1, USB-C to USB-C Cable x 1, Power Adapter x 1

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4. System Requirements
•CPU: i5 Dual Core 2.8GHz or higher
•RAM: 4GB or higher
•OS: Microsoft Windows 8.1/10
MacOS (10.13 and above)
5. Installation
•Connect the Partilink GRA-HU2HU3 4K HDMI Capture Pro into the computer USB-C
port using the USB-C cable inside the package.
•Plug-in the HDMI source with an HDMI Cable into the HDMI INPUT port.
•Plug-in the display device with a HDMI Cable into HDMI LOOP-OUT port.
•Plug-in the 3.5mm headset or other acoustic device into AUDIO port.
•Plug-in your 3.5mm audio connector into LINE-IN port

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6. Capture Operation for Windows OS with OBS
(a) After plugging in your device, go to [Windows Settings] and then go under [BT and Other
Devices] and make sure Partilink GRA-HU1HU2 “4K Grabber Pro”is detected
(b) Download OBS Studio https://obsproject.com/ (OBS-Studio-25.0.8-Full-Installer-x64. exe)

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(c) Open OBS Studio. (version 25.0.8)
6.1 Video Setting
a) Add and select “Video Capture Device”, rename the source and click OK
b)Select “4K Grabber Pro” as your device

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c)Parameter setting references are displayed as below
•Resolution/FPS Type: Custom
•Resolution: 3840x2160
•FPS: Match Output FPS (auto select: 30)
•Video Format: NV12
•Audio Device: HDMI (Partilink 4K Capture Pro)
6.2 Audio Setting
a) Click on the audio setting icon as indication below

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b) Select “Properties”
c)Under “Properties”: Select “4K Grabber Pro”as your device

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d) Under the “Audio Setting”icon: Select “Advanced Audio properties”
e) Under the “Advanced Audio Properties”: Adjust your audio source to the suggested
preferences. Please change the setting of Microphone and speaker into “Monitor
and Output”.
f) OBS Setting completed

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7 Capture Operation for Mac OS with OBS
7.1 Video Setting
a) Under “Sources”, please click on the “+” icon and select “Video Capture Device”
b) Rename the input source and click “OK”
c) C) Under “Properties”: Select “4K Grabber Pro” in “Device”

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d) Under “Properties”: Select “4K Grabber Pro” in “Device”

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Note:
Do not click “Use Preset” and customize the configuration.
Resolution: select the best resolution possible 3840 x 2160
FPS: simple FPS Values 30
Input Format: NV12.
7.2 Audio Setting
a) Click on the audio setting icon as indication below
b) Select “Properties”

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c) Select “4K Grabber Pro” in device
d) Click on the Audio Setting icon and select “Advanced Audio Properties”
e) Under “Advanced Audio Properties”: select “Monitor and Output”
f) Setting completed
Note:
USB 3.0 is recommended to be connected
The different versions of OS will be slightly different in interface
Make sure your source doesn’t not have HDCP, the capture unit doesn’t support HDCP
8 Package Content
•Partilink GRA-HU2HU3 Capture Pro x 1
•USB-C to USB-A Cable x 1
•USB-C to USB-C Cable x 1
•User Manual x 1

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GRA-HU2HU3 User manual (210511 V . 1)
www.partilink.com