Features: * Support Windows, Android and MacOS; * Comply with USB video UVC specifications; * Complies with USB audio UAC specifications; * No external power supply, compact size and easy to carry. A Product Specifications: specification: HDMI resolution: the highest input can support 4K Video input format: 8/10 / 12-bit color depth Video output mode: YUV, JPEG Video output resolution: Maximum output resolution 1080P Support audio format: L-PCM Input cable length: ≤15 meters, AWG26 HDMI standard cable Maximum working current: 0.4A / 5VDC Operating temperature range: (-10 to + 55 ℃) Size: 64x28x13 (mm) Weight: 21.4g Connection operation: 1: Connect the UHD signal source and the HDMI input port of the USB capture card through 1 HDMI cable 2: Plug the USB header of the USB capture card into the USB port of the computer 3: Acquisition operation steps (OBS): Open the software → add a new source → select ‘video capture device’ → set the screen size → Select ‘Studio Mode’ (dual window) → click ‘Start Recording’, see the example below 1. Add a new source and select ‘Video Capture Device’ 2. Set the screen size 3. Select ‘Studio Mode’ (dual window) and the above settings are completed. Note: Computer-side hardware configuration requirements CPU: PC i5-3400 or above; NB i7-3537U 2.0GHZ or above Graphics card: PC NVIDIA GT630 or above; NC NVIDIA GT735M or Support maximum input resolution up to 4K; Support maximum output resolution up to 1080P; Support 8/10/12 bit color depth; When using standard AWG26 cable, input transmission distance up to 15 meters (1080P and below resolution); Support most acquisition software, such as VLC, OBS, Amcap, etc .;