Control up to 4 computers from one keyboard, VGA monitor and mouse. This KVM autoswitch cascades to control up to 64 computers, and support both PS/2 & PC/AT systems. It is plug & play, no software to install and supports simultaneous boot-up. Provides hot-key & push-button for PC selection, supports 180MHz video and resolution of up to 1920x1440. Optional On-Screen Display (OSD-100) and footswitch (2X-002) modules. Required Cables: C3P2M-06 6ft PS/2 KVM combo cables. (Connectors to Console: HD15 Female/2 Mini6 Female/DB9 Male; Connectors to PC: 4 HD15 Male/4 Mini6 Female/4 Mini6 Female/4 DB9 Female)