ULTRA WIDE LONG ARM- with ultra wide and longer arm fits most monitor from 22~ 32'' monitors with load capacity within 6.6~ 26.4lbs (3-12KG) for each monitor, Holds 2 monitors on 1 stand , Perfect solution for 2 screens daily work. VESA-COMPLIANT PATTERNS 75x75mm or 100x100mm, Supports C-clamp or Grommet hole installation, C clamp works great on desk thicknesses within 3.15 (80mm), while Grommet mounting fits desk thicknesses within 3.54 (90mm) WIDE RANGE ADJUSTMENTS Built in with ultra-precision gas-strut, Support: +85° to -30° screen tilt adjustment, 360° rotation for landscape or portrait mode; Upright lift 13.5' (345mm) and +90° to -90° degrees swivel, which is perfect for deeper and larger desktops. USB HUB BUILT-IN Come with USB hubs in the base, provide an easy way to charge your USB devices without using extra desk space.