1U Compact rack mount keyboard drawer with retractable mouse pad for right or left hand operator supports 2 post 19" rack cabinet Ideal for data center, control room, kiosk station and production line control station. Adjustable for different keyboard height with or without integrated trackball or touch pad mouse 1U Compact sliding Keyboard drawer with build in retractable mouse pad design for either right or left hand side operation. Mouse pad can be install as front pull out configuration. Supports standard 2 post 19" relay rack. ( Center Mount) Supports compact keyboard up to 16.19" wide and up to 1.264" max height for 1U Rack Space Installation and 2.079" max height for 1.5 U Rack Space space installation.