RAM Mount RAM-B-138U-A
Best compact mounting solution for secure, vibration-free device positioning.
The RAM Mount RAM-B-138U-A offers a secure and adaptable mounting solution, crafted from durable, powder-coated marine-grade aluminum. It features a 2.5-inch round base with a universal AMPs hole pattern, a short double socket arm, and a diamond base adapter for broad compatibility with RAM cradles. Its patented 1-inch rubber ball and socket system provides near-infinite adjustment angles, while built-in shock and vibration dampening protects your device. This mount stands 3.09 inches tall and weighs approximately 6.40 ounces, ensuring reliable performance in demanding conditions.
$34.99
Owner Satisfaction
4.8
/ 5
Category Rank
5
/ 351
#5 in GPS Mounts
Price vs Category Average
-29%
Below average
Material
Powder Coated Marine-grade Aluminum
/ Powder Coated Marine-grade Aluminum
Who it's for
- Off-roaders needing a rock-solid, vibration-proof device anchor
- Adventure travelers operating in rugged, high-impact environments
- Customizers building a versatile, modular cockpit setup
Who should skip it
- Vehicle owners avoiding permanent modifications or warranty issues
- Users requiring extensive reach or flexible device positioning
- Leaseholders concerned about resale value and surface integrity
Performance breakdown
Build durability
Marine-grade aluminum construction handles harsh environments and heavy daily use effortlessly.
Adjustment flexibility
The patented ball and socket system allows for near-infinite viewing angles.
Vibration resistance
Rubber ball dampening effectively isolates sensitive electronics from road and engine shock.
Mounting versatility
Universal AMPs pattern ensures compatibility with a vast range of cradles.
Installation complexity
Requires a permanent screw-in installation, offering stability at the cost of portability.
Compact footprint
Short arm design keeps your device close and secure in tight spaces.
Key Specs
Material
Powder Coated Marine-grade Aluminum
Ball Joint Size
1.0 inch
Height
3.09"
Approximate Weight
6.40 oz
Mount Type
Round Base with Diamond Adapter
Warranty
Lifetime Limited Warranty
Mounting Type
Screw In
GTIN
0793442903298
Features
- Patented 1" rubber ball and socket system
- Effective shock and vibration dampening
- Near-infinite adjustment angles
- Universal AMPs hole pattern round base
- Diamond adapter connects to most RAM cradles
- Durable marine-grade aluminum construction
- Short double socket arm included
- Adjustable at both arm ends
What customers say
Customers overwhelmingly praise the RAM Mount for its superior build quality and rock solid reliability. The durable aluminum construction and robust coating ensure exceptional longevity, even in harsh environments like marine or off-road settings. The core sentiment centers on trust; users feel completely confident securing expensive electronics because the base provides a permanent, stable anchor point that will not shift. While installation involves drilling, this trade-off is accepted for unparalleled stability. The modular B-size system integrates easily with other RAM components. Despite a premium price, the consensus is that this exceptional durability offers excellent long term value, establishing it as the industry standard for heavy duty mounting.
Know before you buy
The 2.5-inch round base is designed to be screwed into a flat, solid surface. Because it uses a permanent screw-in installation, it provides a much more stable hold than suction cup or adhesive mounts.
This kit includes the mounting hardware and a diamond adapter, but it does not include the device-specific cradle. You will need to purchase a RAM cradle compatible with your specific smartphone model to attach to the diamond adapter.
The 1-inch rubber ball provides a high-friction surface that grips the socket firmly when tightened. This design effectively absorbs road shock and vibrations, preventing your device from drifting or shaking while in use.
Yes, the double socket arm allows for near-infinite adjustment at both ends. You can easily tilt, rotate, and pivot the mount to achieve the perfect viewing angle for your device.
Yes, the mount is constructed from powder-coated, marine-grade aluminum. It is specifically designed to resist corrosion and withstand harsh weather conditions, making it an excellent choice for boats, motorcycles, and off-road vehicles.
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