SKU: 83751263650

RAM Marine Swing Arm Horizontal Mount with Swivel Ball & Socket Joint

Sale price$179.87 Regular price$199.85
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Description

RAM Marine Swing Arm Horizontal Mount with Swivel Ball & Socket JointRAM 109HSB RAM Horizontal Swing Arm Mount with Swivel Ball & Socket Joint The RAM 109HSB is a complete marine electronics mount that pairs a 152mm (6") straight swing arm on a horizontal base with a C size (1. 5") RAM ball and socket joint. The swing arm rotates a full 360 degrees while the ball and socket lets you tilt and fine tune the viewing angle of your fishfinder or chartplotter. Key Features 152mm (6") straight swing arm on a horizontal base

RAM-109HSB RAM® Horizontal Swing Arm Mount with Swivel Ball & Socket Joint

The RAM-109HSB is a complete marine electronics mount that pairs a 152mm (6") straight swing arm on a horizontal base with a C-size (1.5") RAM® ball and socket joint. The swing arm rotates a full 360 degrees while the ball and socket lets you tilt and fine-tune the viewing angle of your fishfinder or chartplotter.

Key Features

  • 152mm (6") straight swing arm on a horizontal base for 360-degree rotation
  • C-size (1.5") RAM® ball and socket joint for tilt and viewing-angle adjustment
  • Universal electronics plate with a variety of pre-drilled holes to match a wide range of devices
  • Powder-coated marine-grade aluminium for corrosion resistance in demanding marine environments
  • Backed by the RAM® lifetime warranty

Dimensions & Specifications

  • Top plate: 159mm x 51mm (6.25" x 2")
  • Ball / socket size: C size (1.5")
  • Material: powder-coated marine-grade aluminium
  • Weight: 898g (1.98 lbs)
  • Weight capacity: 1.81kg (4 lbs) standard use, 1.36kg (3 lbs) heavy-duty use

What's in the Kit

  • RAM-111BU universal electronics base with 1.5" ball
  • RAM-109H-BU horizontal swing arm base
  • RAM-VB-110-5NBU 6" swingle swing arm with swivel socket

Compatible Devices

The universal plate suits a wide range of fishfinders and chartplotters. Confirmed models include:

Garmin

  • ECHOMAP Plus 72cv, 73cv, 74cv, 75cv, 77cv
  • ECHOMAP UHD2 5", UHD2 7"
  • GPSMAP 722, 722xs, 723, 723xsv
  • GPSMAP 742, 742xs, 743, 743xsv
  • Striker Plus 5cv, 7cv, 7sv
  • Striker Vivid 5cv, 7cv, 7sv

Lowrance

  • HDS Carbon 7
  • HDS LIVE 7

Humminbird

  • Suits a range of Humminbird fishfinders and chartplotters via the universal plate

Raymarine

  • Suits a range of Raymarine fishfinders and chartplotters via the universal plate

FAQs

How is this different from the bent swing arm mounts? This version uses a straight arm plus a C-size ball and socket joint, so as well as swinging it can tilt to dial in the viewing angle. The RAM-109HU and RAM-109H-1U use bent arms without the ball joint.

Do I need to drill the mounting plate? The plate has a selection of pre-drilled holes. Some devices line up straight away, others need an extra hole or two drilled to match the bracket. For marine use we recommend stainless steel hardware.

Is it in stock? Yes. This is held in our Auckland warehouse and normally dispatches within one business day of your order.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 83751263650

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4.2 ★★★★★
Based on 20 reviews
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Treats86
Whiting, US
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones. Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well. Looks sleek and cool. I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time. But it feels totally secure on the desk with no wobble or shaking. Great product. Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too. I also bought two of the ultimate set up cable management trays. Great products. Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
N
Verified Purchase
Norman D Warren
Bozeman, US
★★★★★ 5
Solid, simple and perfect.
Color: Black, Color: Black
Great simple design. The quality is evident in the thickness of materials. The assembly instructions, hardware and tools provided help minimize the time spent from opening the box to install. This product is packaged well and shipped with the customer convenience in mind. Well done!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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Verified Purchase
Ashton Raum
Whiting, US
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table. My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
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Reviewed in the United States on April 16, 2026
C
Verified Purchase
Cameron
Natrona Heights, US
★★★★★ 5
Fantasic under-desk mounting solution for gaming PC
Color: White
This item comes with an incredible amount of tools and guides for making you successful in mounting your desktop PC under the desk. I am very impressed with the quality of the materials and also the quality of documents included. It feel very sturdy using the included hardware. I would recommend this item for anyone wanting to free up desktop space!
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Reviewed in the United States on March 27, 2026
M
Verified Purchase
Mike
Los Angeles, US
★★★★★ 5
PC holder that looks great and works on large PCs for easy under desk mounting
Color: Black
After a lot of research and trial and error I finally found the Heavy Duty Under Desk PC Holder. It is the only under desk PC holder that looks good and is able to hold my HP Omen 45L where I want it - under my desk. Putting it together is relatively easy as was the installation to the desk. No messing with cables or round steel tubes to get the job done. The metal is solid, the black powder coating looks great, and the installation hardware is a;l there including a drill bit, hex key, and wrench. You just need to bring a screw driver for the wood screws to attach it to your desk. Read the instructions and make sure you take the depth of your PC into account when attaching the PC holder to your desk, especially if you have a standing desk with motors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025

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