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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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  • FLIR M300 RayNet Right Angle to Straight Cable - 3M [A80695]
    FLIR Systems

    FLIR M300 RayNet Right Angle to Straight Cable - 3M [A80695]

    $136.02
    $137.47
    $136.02
    M300 RayNet Right Angle to Straight Cable - 3MRayNet is a waterproof Ethernet cabling system developed by Raymarine, ideal for marine environments. All current-generation FLIR M-Series digital cameras feature a male RayNet connector.Cables offer waterproof construction, a positive lock/unlock collar, gigabit-speed data transfer, as...
    $136.02
    $137.47
    $136.02
  • Victron VE.Can RJ45 Terminator - Bag of 2 [ASS030700000]
    Victron Energy

    Victron VE.Can RJ45 Terminator - Bag of 2 [ASS030700000]

    $14.76
    $17.37
    $14.76
    VE.Can RJ45 Terminator - Bag of 2This bag contains two VE.Can RJ45 terminators. The terminators are included with some other Victron products, for example, the CANUSB.Please contact your dealer for any returns, repairs or support issues related to this product. Specifications: Package Qty: Two...
    $14.76
    $17.37
    $14.76
  • SI-TEX MDA-3 Metadata Zero Loss AIS Antenna Splitter [MDA-3]
    SI-TEX

    SI-TEX MDA-3 Metadata Zero Loss AIS Antenna Splitter [MDA-3]

    $442.82
    $548.47
    $442.82
    MDA-3 Metadata AIS Zero Loss Antenna SplitterUtilizes a compact (5.5"X3.9"X1.9") module that is IPx7 Waterproof rated, for flexible location and rugged performance in any marine environment.The Metadata AIS Zero Loss Antenna Splitter allows for the full use of VHF communications and AIS send/receive with...
    $442.82
    $548.47
    $442.82
  • em-trak VHF Antenna Splitter [413-0060]
    em-trak

    em-trak VHF Antenna Splitter [413-0060]

    $521.50
    $579.44
    $521.50
    VHF Antenna SplitterA splitter allows a signal to be shared across multiple devices. The VHF Antenna Splitter allows you to use the same antenna for an AIS receiver and a VHF radio.Features: Small robust VHF antenna splitter IPx6 and IPx7 Multiplexes multiple devices to...
    $521.50
    $579.44
    $521.50
  • Digital Yacht SPL1500 Antenna Splitter VHF/AIS [ZDIGSPLK1500]
    Digital Yacht

    Digital Yacht SPL1500 Antenna Splitter VHF/AIS [ZDIGSPLK1500]

    $507.94
    $622.20
    $507.94
    SPL1500 Antenna Splitter VHF/AISAn AIS receiver or transponder requires a VHF antenna, but Digital Yacht’s SPL1500 AIS-VHF antenna splitter allows an existing antenna to be used for both the AIS and VHF (DSC). Unlike most simple splitters, it can also be used with a...
    $507.94
    $622.20
    $507.94
  • Maretron High-Temperature Smoke/Heat Detector Kit [SH-003]
    Maretron

    Maretron High-Temperature Smoke/Heat Detector Kit [SH-003]

    $480.44
    $520.98
    $480.44
    High-Temperature Smoke/Heat Detector KitMaretron's High-Temperature Smoke/Heat Detector Kit is an intelligent NMEA 2000® networked solution, designed to alert you of unusually fast rises in temperature or smoke.This kit contains a smoke/heat detector, auxiliary relay, and sounder that are designed to work in high-temperature marine...
    $480.44
    $520.98
    $480.44
  • Lowrance 50 FT Ethernet Cable ETHEXT-50YL [127-37]
    Lowrance

    Lowrance 50 FT Ethernet Cable ETHEXT-50YL [127-37]

    $166.41
    $188.13
    $166.41
    Rugged, high-speed, moisture and solvent-resistant data cable withstand the toughest onboard marine environments. For Lowrance models with 5-pin yellow ethernet connector. Specifications: Cable Length (Feet): 50' Box Dimensions: 3"H x 6"W x 7"L WT: 1.1 lbs UPC: 042194532349
    $166.41
    $188.13
    $166.41
  • Simrad RJ45-M Ethernet Adapter Cable [000-11246-001]
    Simrad

    Simrad RJ45-M Ethernet Adapter Cable [000-11246-001]

    $41.95
    $47.76
    $41.95
    RJ45-M Ethernet Adapter Cable6" RJ45-Yellow Round Ethernet adapter cable for Simrad NSO evo2 and Zeus2 displays.
    $41.95
    $47.76
    $41.95
  • Digital Yacht NavAlert NMEA Monitor Alarm System [ZDIGNALERT]
    Digital Yacht

    Digital Yacht NavAlert NMEA Monitor Alarm System [ZDIGNALERT]

    $471.76
    $578.79
    $471.76
    NavAlert NMEA Monitor & Alarm SystemNavAlert is Digital Yacht’s latest innovation and allows an alarm to be set for any parameter that’s available on the boat’s NMEA 2000 network. That could be navigation data such as depth, heading, or speed, as well as electrical...
    $471.76
    $578.79
    $471.76
  • Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12]Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12]
    Maretron

    Maretron 12 Circuit Bypass Module NMEA 2K w/o Fuse Pack Jumper Wire [CBMD12]

    $312.88
    $340.08
    $312.88
    12 Circuit Bypass Module NMEA 2K without 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...
    $312.88
    $340.08
    $312.88
  • Lowrance 25 FT Ethernet Cable ETHEXT-25YL [127-30]
    Lowrance

    Lowrance 25 FT Ethernet Cable ETHEXT-25YL [127-30]

    $115.76
    $130.24
    $115.76
    ETHEXT-25YL25 ft. Ethernet CableWorks with: Broadband Sounder-1, GlobalMap 5200C, GlobalMap 5300C iGPS, GlobalMap 7200C, GlobalMap 7300C HD, GlobalMap 8200C, GlobalMap 8300C HD, GlobalMap 9200C, GlobalMap 9300C HD, GlobalMap Baja 540C, GlobalMap Baja 840C, LCX-112C, LCX-113C HD, LCX-27C, LCX-28C HD, LCX-37C, LCX-38C HD, LMS-520C, LMS-522C...
    $115.76
    $130.24
    $115.76
  • Furuno TZtouchXL Multi Cable [001-647-020-00]
    Furuno

    Furuno TZtouchXL Multi Cable [001-647-020-00]

    $130.24
    $0.00
    $130.24
    TZtouchXL Multi CableSpecifications: Multi Cable Specifically for TZtouchXL
    $130.24
    $0.00
    $130.24
  • Raymarine RNS-5 5 Port RayNet Gigabit Switch [A80731]
    Raymarine

    Raymarine RNS-5 5 Port RayNet Gigabit Switch [A80731]

    $597.66
    $636.73
    $597.66
    RNS-5 5 Port RayNet Gigabit SwitchThe RNS-5 network Gigabit switch is designed for expanding Raymarine integrated chartplotter systems using RayNet high-speed Ethernet cabling. Use the RNS-5 to integrate Axiom displays with radars, sonar modules, IP cameras, and Teledyne FLIR thermal cameras. The RNS-5 also...
    $597.66
    $636.73
    $597.66
  • Furuno RJ45 to HUB102 Cable 0.5M Waterproof RJ45 (M) to RJ45 Adapter [WRJ-ADP-05M]
    Furuno

    Furuno RJ45 to HUB102 Cable 0.5M Waterproof RJ45 (M) to RJ45 Adapter [WRJ-ADP-05M]

    $83.94
    $0.00
    $83.94
    RJ45 to HUB102 Cable 0.5M Waterproof RJ45 (M) to RJ45 AdapterFuruno's waterproof RJ45 (M) to RJ45 Adapter Cable.Specifications: Length: 0.5M Waterproof This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
    $83.94
    $0.00
    $83.94
  • Furuno 2M LAN Waterproof Cable f/TZtouchXL [001-653-250-00]
    Furuno

    Furuno 2M LAN Waterproof Cable f/TZtouchXL [001-653-250-00]

    $182.34
    $0.00
    $182.34
    2M LAN Waterproof Cable for TZtouchXL Furuno's TZtouchXL LAN Cable ASSYSpecifications: Length: 2M Waterproof This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
    $182.34
    $0.00
    $182.34
  • Lowrance NEP-2 Network Expansion Port [000-10029-001]
    Lowrance

    Lowrance NEP-2 Network Expansion Port [000-10029-001]

    $477.55
    $0.00
    $477.55
    NEP-2 Network Expansion PortLowrance NEP-2 Network Expansion Port-2 plug-and-play hub for high-speed data-sharing of multiple HDS, LCX,and LMS products with ethernet modules, like the LWX-1 SIRIUS Satellite Radar and Radio module and the Broadband Sounder module across the onboard network. Lowrance NEP-2 Waterproof expansion...
    $477.55
    $0.00
    $477.55
  • Raymarine RNS-8 Network Switch [A80732]Raymarine RNS-8 Network Switch [A80732]
    Raymarine

    Raymarine RNS-8 Network Switch [A80732]

    $1,493.45
    $1,591.86
    $1,493.45
    RNS-8 Network Switch - 8 Port Raynet Network SwitchThe RNS-8 network switch is a premium network switch for integrated Raymarine chartplotter systems. Use the RNS-8 to integrate Axiom displays with radars, sonar modules, and FLIR thermal cameras. The RNS-8 features 4 dedicated Power-Over-Ethernet (POE)...
    $1,493.45
    $1,591.86
    $1,493.45
  • Lowrance 6 FT Ethernet Cable ETHEXT-6YL [000-0127-51]
    Lowrance

    Lowrance 6 FT Ethernet Cable ETHEXT-6YL [000-0127-51]

    $52.08
    $57.89
    $52.08
    6' Extension cable fits all 2007 and newer Ethernet-enabled Lowrance units with 5-pin yellow connector Specifications: Cable Length (Feet): 6' Box Dimensions: 4"H x 4"W x 9"L WT: 0.3 lbs UPC: 042194533568
    $52.08
    $57.89
    $52.08
  • FLIR Ethernet Cable f/M-Series - 25' [308-0163-25]
    FLIR Systems

    FLIR Ethernet Cable f/M-Series - 25' [308-0163-25]

    $157.73
    $159.11
    $157.73
    Ethernet Cable for M-Series - 25'FLIR's 25' Ethernet Cable is for connecting the FLIR M-Series Cameras tothe Joystick Control Unit.Features: Double Shielded RJ-45 LSZH 25' long Specifications: Cable Length (Feet): 25' Box Dimensions: 2"H x 7"W x 8"L WT: 0.6 lbs UPC: 815121010773
    $157.73
    $159.11
    $157.73
  • Navico WM-4 SiriusXM Marine Satellite Weather Audio Antenna [000-14970-001]
    Navico

    Navico WM-4 SiriusXM Marine Satellite Weather Audio Antenna [000-14970-001]

    $781.45
    $0.00
    $781.45
    WM-4 SiriusXM® Marine Satellite Weather & Audio AntennaTracking of weather is easier than ever with the WM-4 Receiver for Simrad, Lowrance, and B & G multifunction displays. The WM-4 provides live, up-to-date weather information and forecasting to give you peace of mind, no matter...
    $781.45
    $0.00
    $781.45