nVent Hoffman PKBS6 PROLINE-PC Keyboard Shelf Reversible stylized Keyboard Shelf allows two options for mounting keyboards. The standard keyboard can be placed in the recessed side wtih recess of 5-degrees from horizontal with a knockout to allow the keyboard cord into the shelf interior. The flush side of the shelf has a 12-degree mounting surface for membrane-type keyboards. Rear hole and grommet provide keyboard cable access into the enclosure. Ergonomic keyboard has aluminum die-cast ends and an aluminum extrusion across the front edge to add styling detail and function as a palm rest . Rear mounting surface is gasketed to maintain UL and CSA class of the enclosure. 14-gauge steel with RAL 7035 textured, light gray, polyester powder paint finish.