The Adder AV4PRO-VGA-QUAD is a 4-port, Quad Head Pro VGA switch which allows you to control four
multi-head computers from one high-resolution KVM console. You can use HD analog video links. The
Switch has Adder's True Emulation technology to support continuous emulation of USB HID devices to
each computer. The unique technology supports instantaneous and secure hotkey switching while also
enabling the extra keys and features of enhanced keyboards and mice. The AdderView has two
independently switchable USB 2.0 channels as well as an audio channel, giving you the flexibility to
connect selected peripherals to different computers.