Belkin OmniView Quad-Bus Series 8-Port KVM Expander. Keyboard port type: USB, Mouse port type: USB. Maximum resolution: 2048 x 1536 pixels. AC input frequency: 50 - 60 Hz. Weight: 4.2 kg. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): 0 - 80 °C