Gasassist design for smooth operation and infinite height adjustment Ergonomic adjustments include: 3point rotation for location flexibility; rotates 135 at base, 180 at center and 90 at monitor Tilt angle adjusts 85 up / 15 down for proper viewing Up to 15 max height from worksurface to center of monitor Up to 21 max extension from base to mounting bracket Largecapacity wire management conceals cords and cables Dual USB 3.0 ports in base for desktop plugin convenience Includes Vesa mounting bracket to support 1730 monitors Includes Clamp & Grommet mount to fit any worksurface , Silver