Arms have an 8" range up and 8" down from vertical, and extend 24". Plus it folds into 3" of desk space. Monitors tilt 200 degrees and rotate 360 degrees. Arms attach to plates on back of most flat screen monitors, which must have the VESA 75 mm or 100 mm mounting pattern.
Four mounting options included: clamp-on, thru-desk (3/8" hole), grommet hole (2 1/2" hole minimum), and screw-on side mount.
Accommodates monitors from 4 to 14 1/2 lbs.
Meets
ADA guidelines.
Optional base with USB ports available:
FSA/BASE/USB.
This part has been discontinued and is limited to stock on hand. They are non-returnable and non-refundable. 
