This is a square plate that has a 4 x 75mm and a 4 x 100mm VESA hole pattern, along with a 1.5" Ball.
- Plate Hole Patterns:
100 x 100 VESA Pattern
75 x 75 VESA Pattern
100 x 50 Half VESA Pattern
- Material: Powder Coated Marine Grade Aluminium
- Ball Size: 1.5" Rubber Ball Size
Note: The "U" in the part number reflects product packaged in poly bag.