BZBGEAR BG-PS21-4K 2-Port 4K 60Hz KVM Presentation Switcher

Two-Port KVM for Conference Rooms

The BG-PS21-4K is a 4K 60Hz KVM presentation switcher designed for small to medium conference rooms. It lets two presenters share a single display while controlling both connected devices with one keyboard and mouse. HDMI and USB-C inputs provide flexible connectivity for laptops and other sources. The unit weighs 245g and measures 168.0mm x 24.5mm x 95.0mm.

18Gbps Bandwidth and Cable Limits

Video bandwidth reaches 18Gbps with maximum resolutions up to 4K@60Hz 4:4:4 8-bit. At full 4K 60Hz 4:4:4, certified cable length tops out at 10m; using 4:2:0 chroma subsampling extends that to 15m, while 1080p signals can run 15m. Audio de-embedding via a 5-pin terminal block passes multichannel formats including LPCM 7.1, Dolby Atmos, TrueHD, Digital Plus, DTS:X and DTS-HD Master Audio.

Two-Source Limit and Upgrade Path

This switcher handles exactly two input devices; rooms needing three or more simultaneous presenter connections cannot use it. Auto-switching detects new HDMI signals and changes the active input automatically, while EDID management reduces handshake issues. HDCP 2.2 protects premium content across the link. For larger setups requiring four inputs, the manufacturer points to the BG-UHD-KVM41 model.