RAM® Drill-Down Marine Electronic Mount RAM-151-246U standard AMPS four hole pattern

standard AMPS four hole pattern and a three hole 120 degree hole pattern

With an emphasis on aesthetics and function

5" diameter round bases with the universal AMPS hole pattern

backing plate and Power Delivery Hardwire Charger

5" diameter base

RAM® Drill-Down Marine Electronic Mount RAM-151-246U standard AMPS four hole patternThe RAM 111U consists of a medium double socket arm, 2. 5" diameter round base, and 6. 25" x 2" rectangle base. The round base includes a 1. 5" C size rubber ball and contains pre drilled holes, including the universal AMPS hole pattern. The rectangle base also includes a 1. 5" C size rubber ball and contains a variety of pre drilled holes that are compatible with several marine electronic devices, including fishfinders and chartplotters.