Premium Quality Durable Gas Spring - Provides smooth, precise and effortless height adjustment for the perfect viewing angle Universal fit - Compatible with most 17' to 49' flat and curved monitors has 75 x 75, 100 x 100, 200 x 100 and 200 x 200 mm VESA mounting patterns, Arm supports up to 50.7 Ibs Full-motion Monitor Arms - Supports height adjustment up to 23', and every joint in the arm is free to movement Front Desktop Accessible USB & Audio Connectors - Provides quick access for your USB device and speaker/microphone Rotatable VESA Plate - Supports portrait or landscape monitor orientation Integrated cable management system keeps cables neat, organized, and out of the way