Tablet keyboard mount - Steel,Aluminum - Black - Attaches to the back of any Gamber-Johnson tablet docking stations and cradles using the VESA 75mm pattern, Tension handle secures the keyboard to the tray and allows the keyboard to be rotated to an ergonomic position and locked into place, Keyboard can be tilted down 30 for working or 60 vertically when stowed, adjustable handle secures keyboard at the desired position, Heavy gauge steel and aluminum construction for long-term durability, Black powder coat finish for maximum corrosion resistance, Four (4) mounting hole patterns to attach keyboard: AMPS (30mm x 38mm) - 2 mounting locations, 2.5 x 2.5 - 2 mounting locations, VESA 75mm, 2 x 7 Honeywell.