Marine Navigation & Instruments - Network Cables & Modules
Connect and expand your onboard electronics system with premium marine network cables and modules designed for reliable communication between navigation devices. Essential for integrating chartplotters, GPS systems, fish finders, radar, autopilots, sensors, and other marine electronics, quality networking components help ensure smooth data transfer and seamless system performance. Built for demanding freshwater and saltwater environments, our collection features durable cables, connectors, adapters, network modules, expansion components, and replacement accessories engineered to withstand moisture, vibration, corrosion, and harsh marine conditions. Browse marine Ethernet cables, NMEA network components, hubs, switches, interface modules, backbone accessories, and installation hardware for a wide range of vessel configurations. Designed for easy installation, dependable connectivity, and long-lasting reliability, these products help maximize the performance of your onboard technology. Featuring trusted marine brands recognized for quality and innovation, our Marine Navigation Instruments – Network Cables & Modules collection delivers reliable solutions for modern vessels. Shop today and upgrade your marine electronics network with confidence.
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- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
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Vendor:Lowrance
Lowrance 15' Ethernet Cable ETHEXT-15YL [127-29]
- $58.99
$66.00- $58.99
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Rugged, high-speed, moisture - and solvent-resistant data cables withstand the toughest onboard marine environments. For Lowrance models with 5-pin yellow ethernet connector. Specifications: Cable Length (Feet): 15' Box Dimensions: 4"H x 4"W x 9"L WT: 0.25 lbs UPC: 042194532042- $58.99
$66.00- $58.99
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Vendor:Furuno
Furuno HUB102 Marinized 5 Port Ethernet Hub [HUB102]
- $395.00
$0.00- $395.00
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HUB102 5-Port Marinized Ethernet HubHUB102 Marinized Ethernet Hub, designed to simplify marine connectivity with up to gigabit speed performance. Supporting multiple sensors and Furuno Multi-Function Displays (MFDs), the HUB102 features water-resistant connections and sealed covers to protect unused data ports. With LED indicators for...- $395.00
$0.00- $395.00
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Vendor:Furuno
Furuno 0.5M Jumper Cable f/HUB102 [HUB-102-JMP]
- $44.00
$0.00- $44.00
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0.5M Jumper Cable for HUB102Furuno's HUB102 0.5M Jumper CableSpecifications: Length: 0.5M Jumper Cable This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.- $44.00
$0.00- $44.00
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Vendor:Furuno
Furuno 10M LAN Waterproof RJ45 x RJ45 Cable f/TZtouchXL [001-653-270-00]
- $159.00
$0.00- $159.00
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10M LAN Waterproof RJ45 x RJ45 Cable for TZtouchXLFuruno's TZtouchXL LAN Cable ASSYSpecifications: Length: 10M Waterproof RJ45 x RJ45 This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.- $159.00
$0.00- $159.00
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Vendor:Garmin
Garmin Marine Network Cable - 50 [010-11169-00]
- $71.99
$79.99- $71.99
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Marine Network Cable - 50'Garmin's marine network cables offer additional cable lengths to help with installation. Various sizes are sold separately.- $71.99
$79.99- $71.99
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Vendor:Garmin
Garmin BlueNet 20 Switch [010-02612-00]
- $301.99
$349.99- $301.99
- Unit price
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BlueNet™ 20 SwitchIncrease the number of available network ports in a Garmin BlueNet™ network. Once you’ve used all the ports on your compatible chartplotter just add a Garmin BlueNet 20 switch to the setup and keep constructing your expansive high-speed network.In the Box: Garmin...- $301.99
$349.99- $301.99
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Vendor:Maretron
Maretron 12 Circuit Bypass Module NMEA 2K w/Fuse Pack Jumper Wire [CBMD12-R]
- $207.00
$225.00- $207.00
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12 Circuit Bypass Module NMEA 2K with Fuse Pack & Jumper WireFor manual control of the loads, an optional MPower® 12-Channel Bypass Module (CBMD12) can be installed in conjunction with the 12-Channel DC Load Controller Module (CLMD12). The maximum current capacity for the CBMD12...- $207.00
$225.00- $207.00
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Vendor:Maretron
Maretron CLMD16-J2 Output Mating Connector w/1M Leads [A3708]
- $72.00
$75.00- $72.00
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CLMD16-J2 Output Mating Connector with 1M LeadsOutput (J2) Mating Connector with 1m Flying Leads.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Cable Length (Feet): 3 Box Dimensions: 1"H x...- $72.00
$75.00- $72.00
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Vendor:Garmin
Garmin BlueNet Network Cable - 40' [010-12528-02]
- $62.99
$69.99- $62.99
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BlueNet™ Network Cable - 40' Our Garmin BlueNet marine network cables offer additional cable lengths to help with installations WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm....- $62.99
$69.99- $62.99
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Vendor:Garmin
Garmin OnBoard Wireless MOB/Engine Cutoff System [010-02908-00]
- $499.99
$0.00- $499.99
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OnBoard™ Wireless MOB/Engine Cutoff SystemTAG WHAT MATTERSBuilt so you can move freely and boat confidently, the Garmin OnBoard system uses wireless tags instead of traditional tethered cords — integrating with your compatible Garmin chartplotter. Tags are worn on the wrist, a carabiner, or a...- $499.99
$0.00- $499.99
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Vendor:Garmin
Garmin BlueNet Network Cable 8" (Right Angle) [010-12528-13]
- $26.99
$29.99- $26.99
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BlueNet™ Network Cable 8" (Right Angle)The Garmin BlueNet marine network cables offer additional cable lengths to help with installations. Additional sizes sold separately.- $26.99
$29.99- $26.99
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Vendor:Garmin
Garmin BlueNet Network Cable - 1 [010-12528-11]
- $22.99
$24.99- $22.99
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BlueNet™ Network Cable - 1'This short Garmin BlueNet™ network cable is used to connect a Garmin BlueNet™ 20 switch or Garmin BlueNet™ 30 gateway to each other, or other Garmin BlueNet network products.- $22.99
$24.99- $22.99
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Vendor:Garmin
Garmin BlueNet Network Cable - 20 [010-12528-31]
- $53.99
$59.99- $53.99
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BlueNet™ Network Cable - 20'The Garmin BlueNet marine network cables offer additional cable lengths to help with installations. Additional sizes are sold separately.- $53.99
$59.99- $53.99
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Vendor:Garmin
Garmin Field Installable Adapter Kit f/Garmin BlueNet Network [010-12528-20]
- $49.99
$54.99- $49.99
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Field Installable Adapter Kit for Garmin BlueNet™ NetworkUse these field installable connectors to wire a Garmin BlueNet™ network cable that does not have a factory-installed connector. Owner's Manual (pdf)- $49.99
$54.99- $49.99
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Vendor:Garmin
Garmin GXM 54 Satellite Weather/Radio Antenna - Black [010-02277-10]
- $776.99
$899.99- $776.99
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GXM™ 54 Satellite Weather/Radio Antenna - BlackThe GXM 54 satellite weather/radio antenna with SiriusXM coverage lets users head out with detailed weather information¹ that’s delivered straight to a Garmin chartplotter. Users gain added awareness and confidence on the water with the most current weather...- $776.99
$899.99- $776.99
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Vendor:Garmin
Garmin BlueNet Network Cable - 500 [010-12528-12]
- $388.99
$449.99- $388.99
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BlueNet™ Network Cable - 500'The Garmin BlueNet™ network cables offer various lengths to help with installations. Various sizes are sold separately. Consider purchasing the Field installable Adapter Kit for the Garmin BlueNet™ network if purchasing this 500-foot-long cable.- $388.99
$449.99- $388.99
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Vendor:Garmin
Garmin BlueNet Network to RJ45 Adapter Cable [010-12531-02]
- $31.99
$34.99- $31.99
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BlueNet™ Network to RJ45 Adapter CableUse this adapter cable to connect your compatible third-party, OneHelm™ digital switching and Fusion® equipment, with an RJ45 port, to the Garmin BlueNet network.- $31.99
$34.99- $31.99
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Vendor:Garmin
Garmin BlueNet Network Cable - 6 [010-12528-30]
- $35.99
$39.99- $35.99
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BlueNet™ Network Cable - 6'The Garmin BlueNet marine network cables offer additional cable lengths to help with installations. Additional sizes are sold separately.- $35.99
$39.99- $35.99
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Vendor:Garmin
Garmin BlueNet 30 Gateway [010-02613-00]
- $301.99
$349.99- $301.99
- Unit price
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BlueNet™ 30 Gateway The Garmin BlueNet 30 gateway is required for Garmin BlueNet™ network compatible devices to network with legacy Garmin marine devices. Through this gateway, you can connect a Garmin BlueNet network to a legacy Garmin Marine Network for a premium control experience.In the...- $301.99
$349.99- $301.99
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Vendor:Garmin
Garmin Boat Switch [010-02735-00]
- $999.99
$0.00- $999.99
- Unit price
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Garmin Boat SwitchQuality Switching. Simple Installation - Get the integrated-boat experience with digital switching that allows you to operate onboard electrical functions right from your GPSMAP® or ECHOMAP™ chartplotter. Features: Reduce reliance on traditional switches and fuses. Add digital control and software current monitoring. Operate...- $999.99
$0.00- $999.99
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![Furuno HUB102 Marinized 5 Port Ethernet Hub [HUB102]](http://www.dbmarinesupplies.com/cdn/shop/files/105330XL_533x.jpg?v=1741120862)
![Garmin BlueNet 20 Switch [010-02612-00]](http://www.dbmarinesupplies.com/cdn/shop/files/101313XL_533x.jpg?v=1791331286)
![Maretron 12 Circuit Bypass Module NMEA 2K w/Fuse Pack Jumper Wire [CBMD12-R]](http://www.dbmarinesupplies.com/cdn/shop/files/107978XL_533x.jpg?v=1759876538)
![Maretron CLMD16-J2 Output Mating Connector w/1M Leads [A3708]](http://www.dbmarinesupplies.com/cdn/shop/files/107984XL_533x.jpg?v=1759876539)
![Garmin BlueNet 30 Gateway [010-02613-00]](http://www.dbmarinesupplies.com/cdn/shop/files/101312XL_533x.jpg?v=1791331286)