The 8-port USB KVM Switch with On Screen Display lets you manage multiple computers with just one set of keyboard, monitor and mouse. This rack mount device supports USB and PS/2 interface on both the console and the PC side. Users can switch between PCs using hot-key, push button or On Screen Display for flexible management and can also hot-plug PCs on the fly to avoid downtime. A maximum of 64 PC connections are supported when you daisy chain multiple TK-804Rs