Garmin 20' Marine Network Cable - RJ45

Enhance Your Garmin Marine Setup with Reliable Networking

Imagine cruising the open water with your Garmin chartplotter feeding real-time data to your radar and sonar without a hitch. That's the peace of mind this 20-foot marine network cable delivers. Engineered specifically for harsh marine conditions, it connects your Garmin displays, GPS units, and multifunction devices seamlessly over the Garmin Marine Network. No more signal drops or frustrating reconnections—just crisp, dependable performance when you need it most.

Unlike off-the-shelf Ethernet cables, this RJ45-equipped cable stands up to saltwater spray, UV exposure, and constant vibration. Its rugged black jacket and secure screw collars ensure a rock-solid fit, making it a go-to for boaters upgrading from shorter runs or expanding their onboard electronics.

Key Features That Set It Apart

• Extended Reach: 20 feet of flexible cable gives you the length to route cleanly around consoles, bulkheads, and tight spaces without excess slack.
• Secure RJ45 Connections: Gold-plated plugs at both ends for corrosion resistance and low-latency data transfer between compatible Garmin gear.
• Marine-Tough Design: Includes screw collars and hole plugs to waterproof grommets and junctions, preventing moisture ingress.
• Plug-and-Play Simplicity: No special tools needed—just snap into your Garmin network ports and go.
• Versatile Sizing: Perfect for larger vessels where devices are spread out, offering the extra footage installers crave.

Perfect Compatibility for Your Garmin Ecosystem

This cable shines with popular models like the ECHOMAP Plus series (72cv, 72sv, 73cv, 73sv), but it's built to link any Garmin GPS navigation systems, chartplotters, radar units, or multifunction displays on the Marine Network. Whether you're networking a fishfinder with an autopilot or expanding to multiple screens, it handles high-bandwidth tasks like HD radar overlays and sonar sharing effortlessly.

Pro tip: Pair it with Garmin's network expanders for even more connections, creating a full command center on deck.

Installation Made Easy: Step-by-Step Guidance

Setting up your marine network doesn't have to be a headache. Here's how to get this cable running smoothly:

1. Power down all devices to avoid shorts.
2. Plan your route: Avoid heat sources and sharp edges; use cable ties for neatness.
3. Feed through existing grommets or drill new holes, sealing with the included plugs.
4. Attach screw collars to lock in place, then plug RJ45 ends into network ports.
5. Power up and verify connectivity via your Garmin menu—data should flow instantly.

For best results, keep runs under 100 feet total and away from high-power lines to minimize interference.

Long-Lasting Performance in Tough Conditions

Boating means battling the elements, and this cable is up to the challenge. Its durable construction resists fraying and cracking, ensuring years of reliable service. Regular inspections—checking for wear at bends or connections—keep it performing like new. Saltwater? Fresh rinses after exposure do the trick.