Features: brand new and high quality 4K60Hz HDR:It supports 4K60Hz HDR input and loop out as well as syncing output audio and video. Plug and Play:Conform to UVC standard, no need to install driver manually, easy to use. Video Capture:It supports capture videos for playback next time with the resolution up to 4K30Hz. High-speed Transmission:Adopting PCIe Gen2 interface, it offers stabler and quicker transmission. Restore Original Color:Adopting RGB, YUY2, NV12, it restores original color of the images as far as possible. Support Real-time Live Streaming:You can play game on one computer and stream it on another one in real time. Specifications: Interface: PCIe Gen2 X1 Input & Output (Pass through): HD2.0 Audio input: High Definition Max pass through resolution: 2160P60Hz HDR, 1440P144Hz, 1080P240Hz Max recording solution: 2160P30Hz, 1440P60Hz, 1080P120Hz Supported resolution: 2160P, 1440P, 1080P, 720P Video format: YUY2, NV12, RGB OS: for Windows 10 64bit, PCIe X1 slot; for Mac pro, Mac OS X High Sierra 10.15 and above, PCIe X1 slot Size: approx. 12.6x12.1x2.2cm/4.96x4.76x0.87in Package Includes: 1 x PCIe 4K Video Capture Card note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!