The EDR-DM2 Electric Desk Riser provides effortless functionality in a standing desk converter, with smooth quiet up/down motion at the touch of a button. It includes all the features of the EDR, plus you get the DM2 dual monitor arm to complete your workstation. The EDR has a large 37.4" x 15.75" work surface, plus a full size 31.8" x 11.8" fixed keyboard tray that holds a keyboard or laptop. Electric lift system raises up to 33 lbs, with EVR Enhanced Vertical Range from 4.7" to 19.7" allowing comfortable ergonomics for users of all heights. Useful extras include 4 AC outlets + 2 USB 2.0 ports on the desktop, and a 10.5" wide slot on the main work surface to hold a tablet or phone.