RAM Mounts Double Socket Arm, Standard Length C Size 1.5" Ball Connector Arm (RAM-201U)
Quick take
The RAM-201U is a medium-length double socket arm for RAM’s C-size (1.5") ball connector systems, using a spring-assisted connection and a turn knob for fast positioning. It’s a solid choice when you need a rigid, adjustable link between two C-size RAM ball components for marine or vehicle electronics, with published weight limits and marine-grade materials. The main caveat is fit and sizing, you must confirm you’re using compatible C-size parts and choose the right arm length for your setup.
Pros and cons
Pros
- Built from powder-coated, marine-grade aluminum for durability in demanding environments
- Double ball and socket design supports near-infinite adjustability across RAM C-size components
- Quick knob adjustment and spring-assisted socket connection for straightforward setup
- Published mounting strength: standard use 4 lbs, heavy-duty use 3 lbs
Cons
- Compatibility is limited to RAM C-size (1.5") ball systems, not smaller or larger RAM sizes
- Length matters, overall length is 5.69", socket-to-socket length is 4.66", so measure carefully for your application
What buyers think
Buyer-review evidence is consistently positive, with themes around stability, secure holding power, and ease of use. Multiple comments highlight that the arm feels rigid and “rock-solid” for keeping electronics mounted even in rougher conditions. Reviewers also describe the adjustment mechanism as straightforward for dialing in an angle, and several note they’ve mixed and matched RAM components to build a modular setup. There is limited review detail focused on long-term wear, but overall feedback supports confidence in day-to-day mounting reliability.
What this arm is, and how it fits RAM mounts
The RAM-201U is a double socket arm made to connect two C-size (1.5") RAM ball components. In practical terms, it’s a linking piece you use when you want your device holder or mounting base to sit at a specific distance and angle, without rebuilding your whole RAM mounting system.
Because it uses RAM’s double ball and socket approach, you can adjust in multiple directions rather than relying on a fixed position bracket. The arm also includes an internal spring that helps keep the socket open so the 1.5" ball can be inserted into the connection.
Key specs that affect buying decisions
Length and measurement that actually matters
This arm is labeled as a medium-length option. The published overall length is 5.69", while the socket-to-socket length is 4.66". That difference matters when you are planning clearance for cables, housing, and enclosure edges. If you are swapping parts or building around a specific device, measure twice using the distance you need between the connected socket points.
Load limits (standard vs heavy-duty)
For mounting strength, it lists standard use at 4 lbs and heavy-duty use at 3 lbs. If your setup includes heavier electronics or you expect more vibration and movement, lean toward the heavy-duty figure when planning your payload.
Material and finish
The arm is made from powder-coated, marine-grade aluminum. That combination is designed to stand up to corrosion and wear in outdoor or marine environments.
Ease of adjustment and day-to-day usability
Buyers generally describe the arm as easy to operate, thanks to the adjustment knob. The system is intended for repeated repositioning, so it can work well when you fine-tune your camera angle, monitor view, or electronics placement after initial installation.
For some applications, setup success comes down to compatibility and correct length selection. A reminder that shows up in buyer feedback is to confirm whether a listing measurement is describing total arm length or socket-to-socket distance, since those two numbers can change how your device clears your mounting surface.
Pros and cons, translated into real buying guidance
Who this is best for
- People building or expanding a RAM C-size (1.5") ball mounting system who need a medium-length double socket link
- Marine and vehicle users mounting electronics where you want rigidity and corrosion-resistant materials
- Buyers who value adjustable positioning without switching to custom fabrication
Who should skip it (or shop another size)
- If your existing RAM components use a different size ball (not C-size 1.5"), this arm likely won’t match
- If your application requires a different distance than the 5.69" overall length (or 4.66" socket-to-socket length), you may need a different arm length to avoid clearance issues
Is it worth it?
If you already use RAM’s C-size (1.5") ball system and you need a durable, adjustable double socket arm with a clear medium-length profile, the RAM-201U is a straightforward way to get that flexibility. The value is strongest when your use case aligns with its listed load limits and when you measure correctly for overall length versus socket-to-socket length. If compatibility or clearance planning is uncertain, double-check your existing components and dimensions before ordering.
Price and availability
The product is typically sold with fluctuating pricing compared with higher list pricing, so it’s worth checking the current listing price before you commit.
Frequently asked questions
What RAM mounts are compatible with the RAM-201U?
The RAM-201U is designed for RAM C-size (1.5") ball components. It attaches to any C-size RAM ball component in the same system, such as mounting bases or device holders that use the 1.5" ball.
How long is this double socket arm?
It has an overall length of 5.69" and a socket-to-socket length of 4.66". If you are planning clearance, socket-to-socket is often the more relevant measurement.
What weight limits should I use?
It lists 4 lbs for standard use and 3 lbs for heavy-duty use. If your installation experiences higher vibration or movement, planning around the heavy-duty figure is the safer approach.
Is it suitable for marine use?
It’s made from powder-coated, marine-grade aluminum, which is intended for corrosion resistance and durability in demanding outdoor environments.
Does the arm adjust easily after installation?
Yes. It includes an easy-to-adjust knob and uses a ball and socket design, which supports repositioning across multiple angles.
Alternatives to consider
If you need a different mounting distance or a different RAM size, your best alternative is usually another RAM arm length or the appropriate RAM size (rather than switching brands). When comparing options, focus on compatibility with your current ball size (C-size 1.5") and choose an arm length that matches your required socket-to-socket clearance.
Specifications
| Product Title | RAM Mounts Double Socket Arm, Standard Length C Size 1.5" Ball Connector Arm for RAM Mount Systems, Marine Electronics & Device Holders RAM-201U |
|---|---|
| Category | Electronics > GPS, Finders & Accessories > GPS System Accessories > Vehicle Mounts |
| Brand | RAM MOUNTS |
| Manufacturer | RAM MOUNTS |
| Model Number | RAM-201U |
| Color | Black |
| Material | Marine Grade Aluminum |
| Item Weight | 0.71 Pounds |
| Brand Name | RAM MOUNTS |
| UPC | 024606677213 793442002014 826713818103 888063286742 088020575708 933439540864 611105000699 012304166696 053786307061 053786300871 826713824784 |
| Global Trade Identification Number | 00793442002014 |
| Manufacturer Part Number | RAM-201U |
| Manufacturer Warranty Description | Manufacturer |
| Included Components | RAM MOUNTS RAM-201U |
| Item Type Name | Parts |
| Item Dimensions | 19.69 x 19.69 x 11.02 inches |
| Material Type | Marine Grade Aluminum |
| Mounting Type | RAM Mounts C Size 1.5" Ball Components |
| Finish Types | Powder Coated |
| Item dimensions L x W x H | 19.69 x 19.69 x 11.02 inches |
Available variants
Style
- Short Arm
- Medium Arm
- Long Arm
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