RAM® Double Ball Mount for Raymarine A50, A50D, A57D & A70 Helix 7 The RAM-B-101LU consists of a

The RAM-B-101LU consists of a double socket arm

5" round plate with AMPS hole pattern as well as a rectangular plate with AMPS hole pattern

The RAM camera base contains a 1

as well as a 3 hole 120 degree offset pattern

The RAM-B-189B-201-ALA1-KRU consists of a double 3

RAM® Double Ball Mount for Raymarine A50, A50D, A57D & A70 Helix 7 The RAM-B-101LU consists of aThe RAM D 101 RM1U consists of a 3. 68" diameter round base with the universal AMPS hole pattern, STANDARD length double socket arm and 3. 68" round base. The RAM D 101 RM1U includes hardware that will attach Raymarine Chartplotters to the mount. Designed into the mount is a 2. 25" diameter patented rubber ball and socket system with adjustment points at both socket ends of the arm.