RRocelco MA2 - Double monitor Arm with GPCMA (Gas Piston Counterbalance Motion Assist) allows effortless independent screen adjustment for comfortable viewing. Fits two 10"-32" screens up to 22 lbs each. Includes USB 3.0 and USB-C ports to conveniently connect and charge your devices. Quick installation and adjustment - no tools required. Cable channels provide a hassle-free way to run your cables and maintain a tidy uncluttered workspace. Includes two mounting systems to attach to your desk - clamp and grommet. 75mm x 75mm, 100mm x 100mm mounting patterns.