

RAM Mounts Double Socket Arm, C-Size, Short, 90 mm (RAM-201U-B) is the connecting link of the RAM ball-and-socket system: it joins two RAM C-size (1.5") ball components – typically a ball base fixed in a vehicle, on a forklift or at a workstation and a device holder or cradle with a matching ball. With 90.4 mm (3.56") overall and 63.5 mm (2.5") between the sockets, it is the shortest C-size arm from RAM – ideal when the device should sit as close to the base as possible. A spring inside the arm keeps the sockets open for easy fitting, and turning the knob clamps both ball joints firmly at the angle you need.
📦 What's in the box – RAM-201U-B
- Double socket arm – C-size (1.5"), short, 90.4 mm (3.56") overall
- Knob – with bolt and spring
💡 You might also consider a C-size round ball base (AMPS) or a diamond ball base for the mounting surface and a key-lock knob to protect the arm against theft.
Key Features
- Length – 90.4 mm (3.56") overall, 63.5 mm (2.5") socket to socket
- C-size (1.5") sockets – fit any RAM C-size ball base, adapter or device holder, with near-infinite adjustment
- 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
Technical Specifications
| Part Number | RAM-201U-B |
|---|---|
| Product Type | Double socket arm, short |
| Connection | 2 × C-size (1.5") sockets |
| Load Capacity | 1.8 kg (4 lb) standard use; 1.4 kg (3 lb) heavy-duty use |
| Material | Powder-coated marine-grade aluminium |
| Dimensions | Overall length 90.4 mm (3.56"); socket to socket 63.5 mm (2.5") |
| Weight | 0.24 kg (0.52 lb) |
| Warranty | Lifetime warranty (RAM Mounts) |
| In the Box | Double socket arm, knob with bolt and spring |
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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