The RAM-111U-D consists of a 2.5" diameter round base that contains the universal AMPs hole pattern, LONG LENGTH double socket arm and 6.25" x 2" rectangle base. The rectangle base contains different combinations of pre-drilled holes which will match up to many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and more
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter
Rectangular Plate: 6.25" x 2"
Round Plate: 2.5" Diameter
C Size (1.5")
Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs
The included plate is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device.