Manual-Lift Computer Wall Mount For sit-to-stand adjustment, Cygnus offers the A4000T and A4020T computer arms. The track comes in several lengths to accomodate your specific needs. Features Vertically Adjustable (2', 3' or 4' track) Dual-extension articulating arm for monitor and keyboard Secure CPU holder Mouse holder and mouse pad Self-adhesive hook & loop to secure keyboard Over 30 inches of horizontal extension Over 180º rotation 90º tilting monitor bracket Large keyboard tray for easy mousing and mouse storage Keyboard tray adjusts vertically for ergonomic positioning and folds up when not in use Mesh cable management wrap VESA: 75mm and 100mm Options Anchor-pad laptop security Keyboard lighting Scanner holder Power transformer holder