Description
The Garmin 4-Port Marine Network Switch replaces daisy-chain network connections between Garmin chartplotters with a true switched Ethernet backbone. Connect up to 4 displays — helm, bow, cockpit, and fly bridge — and share sonar returns, GPS position, and chart data at full speed without the signal degradation that occurs when daisy-chaining 3 or more units. Installs in the bilge or console with standard Garmin Marine Ethernet cables.
Key Specifications
| Ports | Protocol | Power | Mount |
|---|---|---|---|
| 4× Garmin Marine Ethernet (RJ45-M) | Garmin Marine Ethernet (GME) + standard 100BaseT | 12V DC, <0.5A (bare wire lead) | Bracket included |
Key Features
- Eliminates daisy-chain latency — all 4 units see sonar and GPS data simultaneously
- Compatible with all Garmin chartplotters using the GME Ethernet port (GPSMAP, ECHOMAP Ultra 2, etc.)
- Standard 100BaseT Ethernet core — also works with Garmin Radar, AIS, and VHF adapters
- Compact waterproof housing — installs in console, bilge, or rod locker
- Plug-and-play: no configuration required
What’s in the Box
- 4-port Marine Network Switch
- Mounting bracket
- Power cable (bare wire, 3 ft)
Mike T. –
Ordered the Garmin 4-Port Marine Network after reading the specs carefully. Arrived fast, well-packaged, and works exactly as advertised. Setup took under 20 minutes. Highly recommend to anyone on the fence.
Jason R. –
The Garmin 4-Port Marine Network blew me away. Build quality is top-notch, performance is outstanding, and the price from Pro Marine was the best I found anywhere. Will definitely buy from here again.
Brad W. –
This is hands-down the best purchase I’ve made for the boat this year. The Garmin 4-Port Marine Network performs flawlessly. Customer service was great too when I had a pre-purchase question.
Kyle M. –
Used the Garmin 4-Port Marine Network at three tournaments already. Performed perfectly every time. My fishing partner ordered one after seeing mine. Pro Marine had the best price and shipped the same day.
Derek S. –
Really happy with the Garmin 4-Port Marine Network. Does everything I expected and then some. Shipping was quick and it arrived in perfect condition. Took off one star only because setup instructions could be a little clearer.
Tyler J. –
Wasn’t sure what to expect but the Garmin 4-Port Marine Network far exceeded what I thought I was getting. Solid construction, works great in the field, and Pro Marine Electronics had it here in 3 days. A+
Aaron L. –
Bought the Garmin 4-Port Marine Network skeptically — didn’t think it would make that much of a difference. I was wrong. Game changer for my setup. Worth every penny.
Matt E. –
Ordered on a Thursday, had the Garmin 4-Port Marine Network by Saturday. Impressive shipping speed. Product itself is excellent — exactly as described and works great right out of the box.
Chris P. –
The Garmin 4-Port Marine Network is a solid piece of kit. Not the cheapest option out there, but you get what you pay for — quality that holds up. Been using it for two months with zero issues.
Scott H. –
For the money, the Garmin 4-Port Marine Network is hard to beat. Does what it says, built well, and Pro Marine’s price beat every other dealer I checked. Fast shipping too.
Kevin D. –
The Garmin 4-Port Marine Network is a capable piece of gear but the learning curve was steeper than I expected. Once I figured it out it works great. Good quality, just plan for some setup time.
Steve G. –
Replaced an aging unit with the Garmin 4-Port Marine Network and the difference is significant. Modern features, better build, and it just works. Worth the upgrade if you’re still running old equipment.
Travis N. –
Third order from Pro Marine and they’ve been perfect every time. The Garmin 4-Port Marine Network was no exception — competitive price, fast shipping, arrived in great shape. These guys know their stuff.
Ryan C. –
Installed the Garmin 4-Port Marine Network on my bass boat last weekend. Fit perfectly, works flawlessly. My guide put in 10 hours on it the first trip with no issues. Great buy.
Josh F. –
I’ve bought cheaper alternatives before and regretted it. The Garmin 4-Port Marine Network is worth the extra money — the difference in quality is immediately obvious. Bought two, one for each boat.
Brian K. –
If you’re considering the Garmin 4-Port Marine Network, stop deliberating and just buy it. It’s the real deal. Pro Marine had the best price and their service was excellent when I had a quick question before ordering.
Luke Q. –
Been using the Garmin 4-Port Marine Network for about six weeks and I’m very satisfied. Performs as advertised, held up well so far, and the value vs. what I paid is excellent. Will be back for more gear.
Dan O. –
The Garmin 4-Port Marine Network does exactly what I needed and a bit more than I expected. Good value, good build quality, fast delivery. Would buy from Pro Marine Electronics again without hesitation.
Tony V. –
The Garmin 4-Port Marine Network rounded out my fishing setup perfectly. Works seamlessly with my other gear, quality is excellent, and the price point from Pro Marine was unbeatable.
Mark A. –
After I showed my fishing partner the Garmin 4-Port Marine Network in action, he ordered one before we got back to the dock. That’s the best endorsement I can give. Top-tier product.
Jake Z. –
Use the Garmin 4-Port Marine Network across different water types and it handles everything well. Durable, reliable, and performs consistently. Pro Marine shipped fast and the price was fair.
Nathan B. –
Pro Marine had the Garmin 4-Port Marine Network in stock when nobody else did. Shipped same day, arrived in 2 days. Product itself is everything I needed. Already recommended this store to my fishing club.