Human-Machine Interface Keyboard, supports and drawers Keyboards mounted in a tray on the operating housing or integrated into the 19” rail with a drawer or flap. Keyboard, supports and drawers Keyboards Keyboards for command panels. Show products Keyboard, supports and drawers Rests Rests for command panels. Show products Keyboard, supports and drawers Drawers and Trays Drawers and trays for installation in the 19" level or on surfaces. Show products