Brand new, untouched Ergotron NX single-monitor desk arm in matte black. Includes the original box, instruction manual, mounting hardware, desk clamp, arm, pole/base assembly, and monitor mounting plate shown in the photos. Designed for monitors up to 34” and up to 17.6 lbs. Compatible with 75 × 75 mm and 100 × 100 mm VESA mounting patterns. The arm offers height adjustment, tilt, rotation, and extension, with built-in cable management. Part number: 45-669-224