SMA 4K HDMI KVM Switch 2×2 Dual Monitor 1080P@120Hz 4 USB 3.0

Two-Computer Dual-Monitor KVM

This KVM switch lets one keyboard, one mouse and two monitors control two separate computers. It accepts two HDMI inputs per system and provides two HDMI outputs for dual-display operation. Four USB 3.0 ports share peripherals such as printers, keyboards and mice across both machines. A 3.5 mm audio jack switches sound automatically with the active computer.

Sustained Operation with No Extra Power

The unit draws all required power from the connected computers so no external adapter is needed. Video passes through at up to 4K@60 Hz and remains stable during long sessions; the switch also handles 1080P@120 Hz for high-refresh workflows. USB 3.0 ports maintain 5 Gbps throughput while switching between hosts without dropping connected devices. LED indicators show the active channel at a glance.

Check Your Computer Video Outputs First

Each computer must provide two HDMI outputs to use extended or mirrored dual-monitor modes; the switch cannot add this capability. Verify that your graphics hardware supports the desired resolution and refresh rate combination. Hot-key switching requires a standard USB keyboard; some compact or gaming keyboards may not trigger the command sequence. The included cables are USB 3.0 and USB Type-C for host connections.