DUAL ARM MONITOR MOUNT: Fits 2 screens up to 32 inches, with a maximum support weight of 17.6 pounds each, using the 75x75mm or 100x100mm VESA square bolt hole pattern found on the back of the monitors. Comes with interchangeable C-clamp or grommet base mount for use on desktops. FEATURES: Dual monitor arm has counterbalanced, mechanical spring arms which are easily height adjusted and comes with 2 x USB 3.0 ports and (1) USB extension cable. It has integrated cable management and is made out of heavy duty steel and aluminum alloy.