E-SDS 88-key Industrial Keyboard, Slim X Architecture with PS2 Interface Black Using high quality rubber bouncing ball, it makes the whole keystrokes, lightweight, comfortable feel strong. Use hook fork support structure, making the key body slide up and down with ease, effectively reducing the noise due to key posts and key-based friction generated. Small, fully functional, suitable for a variety of terminals and PC, particularly suitable for home or small office, the pursuit of a comfortable keyboard, beautiful friend keypad, Industrial keyboard, PS2 interface, X architecture. Products designated industrial machinery. Note:PS2 interface keyboard doesn't support hotplug. Size: 30 * 15.5CM. Among the widest edge width 14.5CM.