Ergotron – LX Desk Monitor Arm in Black, Monitor Mount with patented Constant Force Technology, for displays up to 34″, 3.2-11.3 kg with VESA-Standard

Ergotron HX Desk Monitor Arm – Mounting kit (articulating arm, desk clamp mount, grommet mount, pivot, mounting hardware, extension part) for Monitor – matte black – screen size: up to 49″ – desktop