KVM switches also come in a variety of ranges, styles and functionality. The USB version, which is the USB switch, enables a single user to control multiple USB computers via a single USB keyboard, mouse and VGA monitor.
The PS2 KVM switch performs the same function via a PS2 keyboard, mouse and VGA monitor. The PS2 KVM switch with audio performs the same function with the added ability to switch audio from each PC that is connected and transmit the sound to a set of peripheral speakers. The dual video DVI KVM switch and the dual video PS2 KVM switch help to control multiple computers with dual video connections. These switches support dual DVI monitor/flat panel displays with high resolution up to 1920 x 1440.
The CAT5 KVM Switch allows access to servers up to 40 meters with Cat5e/Cat6 cables. They provide higher density, multiplatform capabilities through the use of USB or PS/2 dongles. These switches can also be cascaded to access up to 256 servers. Another version, the IP KVM switch, provides remote IP access with SSL v2/v3 secured transmission. DVI KVM switch (DVI stands for digital video interface) is a hardware device that allows a user to control multiple DVI based computers with a single keyboard, DVI video monitor and mouse.