4:4: 4 chroma sampling. The USB HDMI Switch with button design, freely switch between 2 computers by pressing a button. Powered by HDMI cables, no power adapter required, plug and play, saving you space. Support wireless keyboard and mouse and mechanical gaming keyboard. 4K 2 Port HDMI KVM Switcher using high technology to decode, no need to drive, transmission technology support such as PC, Laptop, Apple TV, PS3/PS4/PS5, Xbox, Sony Bluray player, projectors, audio/video receivers and most of the HDMI capable devices. High-speed transmission without lag, no loss of picture and sound quality.