Perixx PERIBOARD-314 US Backlit Keyboard with Trackball - Wired USB Interface with 2xUSB Hub - Blue Backlit Feature - 14.57x5.39x1.02 Inch - Trackball Updated in 2015 14.57x5.39x1.02 Inch Dimension (370x137x26mm) 1.8M USB Connector with 2 extra USB Hubs Fit with 19" Rack Drawer & Kiosk Application (Compatible with Cherry G84-4400 Design) Blue Backlit Feature with 4 Level Brightness Adjustment logitech Microsoft adesso cherry razer 19" rack