PE1257 Features: * 30 degrees of swivel to each side (60 degrees total) * Height adjustability from 15.7"" to 21.76"" (when measuring from the desktop to the top mounting hole) * Height adjusts at 1.5"" increments * VESA hole patterns including 200x200, 200x100, 100x200 and 100x100 * Maximum load capacity: 80 lbs