RAM 4.75" Square VESA Base with 3.38" Ball, 4 x 100mm and 4 x 75mm Hole Pattern Level Cup XL and mounting hardware

and mounting hardware

Universal AMPS hole pattern for broad device compatibility

Once locked

The center 2 slots are 2 7/16 inches center to center and are just under a 1/2 inch long

RAM 4.75" Square VESA Base with 3.38" Ball, 4 x 100mm and 4 x 75mm Hole Pattern Level Cup XL and mounting hardwareFeatures: VESA 4. 75" square adapter plate with 4x100mm holes and 4 x 75mm holes in each corner hole size: 0. 34" RAM 3. 38"" rubber ball is connected to the plate fits RAM E size socket arms Includes washer inserts for use with smaller screws Constructed of powder coated marine grade aluminum Holds up to 15 lbs. with standard use or 10 lbs. with Heavy duty use Genuine RAM Mount: Part # RAM E 246U Manufacturer's lifetime warranty Made in the USA