Ergotron 24-312-026 Mounting Arm with 19.5-Inch Height Adjustment Mount Style: Mounting Arm TV Weight Capacity: 25 lb VESA Compatible: 75 x 75 100 x 100 Feature: WorkFit-A Dual-Monitor Sit-Stand Workstation Recommended Screen Size: = 24 (maximum outside width of display = 24.5) Weight Capacity: Total = 25 lbs; combined LCD weight = 9 to 20 lbs Height Adjustment: Displays and keyboard adjust 20 in tandem Mounting Standards: VESA FDMI, MIS-D, 75/100, C (hole pattern = 100 x 100 mm or 75 x 75 mm) Keyboard Tray: 27 x 9.75 Keyboard tray can be installed in 3 different positions: centered, offset right or offset left Arm extends up to 42 from back of desk and pushes back to within 18.25 when fully retracted NOTE: Your system may require extra-long power, video or peripheral cables to span between standing and sitting heights Electrical Outlet Plug Type: Mounting Arm...