Control up to 4 computers from one keyboard, VGA monitor and mouse. This 1U KVM autoswitch has dedicated cascades port & expand to control up to 124 computers, has On-Screen-Display (OSD) for easy & secured server management, and dual connectors to 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 1600x1200. Includes rackmount kit, daisy chain cable and power adaptor. 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 Female/4 Mini6 Female/4 Mini6 Female/4 DB9 Female)