DIGITNOW U148 - USB3.0 HDMI 4K Capture Card Manual

Introduction

Thanks for purchasing USB3.0 HDMI Video capture. The following guides you how to set up. Hope this device will bring you nice digital experience.
With USB3.0 HDMI Video capture, just plug to your PC(Windows, Mac, Linux), no need install driver, you can use any 3rd party software to capture or stream your HD game, or other HD video source.

Features

• Support input max resolution 4K 30Hz;
• Support capture max resolution 4K 30Hz;
• Support most acquisition software, such as VLC, OBS, Amcap, etc;
• Support Windows、Android、Linux and MacOS;
• Conform to USB Video and UVC standard;
• Conform to USB Audio UAC standard;
• No driver is needed, true Plug and Play.
• Aluminum alloy housing.

Ports and buttons

1. HDMI input port—connect HDMI signal source devices.
2. USB 3.0 Port—connect to computer with USB3.0 cable.

Application diagrams

OBS software download link:https://obsproject.com/

Connection and Operation

1. Connect the HDMI signal source to the HDMI input of the video capture with one HDMI cable.
2. Connect PC USB pat to the USB output of the video capture with one USB cable.
3. Run OBS Studio, Click "+" icon under "Sources" window, and select "Video Capture Device", then select "USB3.0 4K30 Video" in the drop box next to "Device":
   
4. At Set Audio Output Mode to "Output desktop audio (Wave Out) ", Audio Device to "USB3.0 4K30 Audio "
   
5. Set the video latency for make the audio and video synchronized:
   Right click "Video Capture Device" then click "Filters",Click to add "Video Delay (Async)",Set it to 470ms (You can adjust it smaller or bigger uttil you found the audio and video synchronized).
   Then you can recording or streaming video:
   

Work with other applications(e.g. VLC, Media encoder, Protplayer...):
Just run the application then choose capture device to "USB3.0 4K30 Video".

Work on MAC

Work with OBS Studio:
Download and install OBS studio, then do the same as above on MAC.
Work with Quick Time Player:

1. Run Quick Time player, select "New Movie Recording":
   
2. Choose "USB3.0 4K30 Video" & " USB3.0 4K30 Audio " under Camera and Microphone Option:
   

Specifications