The Rocelco R EDRB-46 Electric Desk Riser provides effortless functionality in a standing desk converter, with smooth quiet up/down motion at the touch of a button. This Stand up computer workstation features a large 46" x 23.6" work surface, plus a full size 35" x 10" fixed keyboard tray that holds a keyboard or laptop. Electric lift system raises up to 35 lbs, with EVR Enhanced Vertical Range from 4.7" to 21.7" allowing comfortable ergonomics for users of all heights. Useful extras include 4 AC outlets + 2 USB 2.0 ports on the desktop, a 10.5" wide slot on the main work surface to hold a tablet or phone, and a rear grommet hole for an optional monitor arm. Your new desk riser comes with anti scratch foam rubber pads so it can safely be placed directly on your current tabletop.