The Kendall Howard 2-Post Keyboard Tray features a slim 1U 19-inch EIA compliant design that makes it ideal for commercial, military, aerospace, corporate and small office applications alike. Its locking feature keeps the keyboard tray securely closed, even in a mobile rack application. The heavy-duty ball bearing slides provide a smooth transition between the keyboard tray's open and closed position. This keyboard tray includes a 107-key QWERTY keyboard with a built-in touchpad mouse. The inset handle on the keyboard tray will give you the flexibility to install it in most types of racks, cabinets and enclosures. The keyboard and mouse's single USB cable is securely fastened to the base of the keyboard tray, preventing the cable from being damaged while the keyboard tray slides in and out of position.