STARTECH 4 Port 1u Rackmount Usb Kvm Switch With SV431DUSBU, 2 - Console Interface(s): USB Type-A (4 pin) USB 2.0, 1 - Console Interface(s): VGA (15 pin, High Density D-Sub), 4 - Host Connectors: VGA (15 pin, High Density D-Sub), Audio: No, KVM Ports: 4, PC Interface: USB, PC Video Type: VGA, Number of Monitors Supported: 1, Rack-Mountable: Optional, Cables Included: No, Daisy-Chain: Yes, 4 - LED Indicators: Green - Online PC, Red - Selected PC, 1 - LED Indicators: Green - Power The SV431DUSBU 4 Port 1U Rack Mountable USB KVM Switch with OSD lets you control multiple USB based computers from a single