

RAM Mounts Long Double Socket Arm with Round Ball Plate, C-Size, 232 mm (RAM-103U-D) combines two of RAM's core C-size (1.5") components: the long double socket arm RAM-201U-D (231.8 mm / 9.125" overall, 203.2 mm / 8" socket to socket) and the round ball plate RAM-202U (Ø 63.5 mm / 2.5") with the universal 4-hole AMPS pattern and a 3-hole 120° pattern. The plate serves as a drill-down base or as an adapter on an AMPS cradle, and the free socket end connects to any C-size ball base or holder. Both parts are made of powder-coated marine-grade aluminium.
📦 What's in the box – RAM-103U-D
- Double socket arm, long – RAM-201U-D, 231.8 mm (9.125") overall
- Round plate with ball – RAM-202U, Ø 63.5 mm (2.5"), AMPS
💡 You might also consider a C-size VESA 75 ball plate for a terminal or display with a VESA 75 pattern, or an X-Grip holder for 7" tablets with C-size ball as a ready-to-use universal holder.
Key Features
- Long arm – 231.8 mm (9.125") overall, 203.2 mm (8") socket to socket
- AMPS round plate – Ø 63.5 mm (2.5"), 4-hole AMPS (30 × 38 mm) and 3-hole 120° (Ø 46 mm)
- Load rating – up to 1.8 kg (4 lb) standard use; 1.4 kg (3 lb) heavy-duty use
- Material – powder-coated marine-grade aluminium
- Lifetime warranty – backed by RAM Mounts
Compatibility
- All RAM C-size (1.5") ball bases, ball adapters and device holders
- Device holders and cradles with the 4-hole AMPS pattern (30 × 38 mm)
- Accessories with the 3-hole 120° pattern (Ø 46 mm)
Technical Specifications
| Part Number | RAM-103U-D |
|---|---|
| Product Type | Mounting set: double socket arm + round ball plate |
| Connection | C-size (1.5") ball and socket; 4-hole AMPS 30 × 38 mm; 3-hole 120° Ø 46 mm |
| Load Capacity | 1.8 kg (4 lb) standard use; 1.4 kg (3 lb) heavy-duty use |
| Material | Powder-coated marine-grade aluminium |
| Dimensions | Arm 231.8 mm (9.125") overall; plate Ø 63.5 mm (2.5") |
| Weight | 0.84 kg (1.85 lb) |
| Warranty | Lifetime warranty (RAM Mounts) |
| In the Box | Double socket arm, long, round plate with ball |
More RAM ball bases, socket arms and mounting kits are waiting in our Mobile Terminal Accessories collection. Planning a vehicle or forklift installation, or ordering for a whole fleet? Contact us for project support and volume pricing.
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