Collection: Marine Navigation & Instruments - Accessories

Complete your navigation setup with the right accessories.

Explore marine navigation accessories designed to support the installation, protection, connection and everyday use of your onboard electronics. From mounting hardware and protective covers to power cables and adapters, the right accessories help keep your navigation equipment organized, connected and ready for the journey ahead.

Shop marine electronics mounts, display covers, power cables, adapters, brackets, connectors, extension cables, replacement hardware and navigation installation accessories for GPS systems, chartplotters, fishfinders, radar, AIS, sonar, marine instruments and other compatible onboard electronics.

Whether you're installing new navigation equipment, replacing a missing component, expanding an existing electronics system or keeping useful spares aboard, Roam & Harbor makes it easier to find the supporting accessories needed to complete your setup.

Always verify device compatibility, connector type, cable length, mounting requirements, voltage and manufacturer specifications when selecting accessories for marine electronics.

Complete the setup. Connect your electronics. Keep exploring.

361 products

  • Raymarine

    Raymarine RCR-SD/USB-Card Reader [A80440]

    Regular price $199.99 USD
    Sale price $199.99 USD Regular price $0.00 USD

    RCR-SD/USB-Card ReaderRear - Charging, external storage device for Axiom & Axiom Pro Units

  • Raymarine

    Raymarine E90W to Axiom Pro 9 Adapter Plate to Existing Fixing Holes [A80530]

    Regular price $89.99 USD
    Sale price $89.99 USD Regular price $0.00 USD

    E90W to Axiom Pro 9 Adapter Plate to Existing Fixing Holes Axiom Pro 9 adapter plate for legacy E90W MFDs Fixing holes: Existing Model: Axiom Pro...

  • Navico

    Navico M12 to RJ45 Female Adapter - 1.5M [000-16495-001]

    Regular price $69.00 USD
    Sale price $69.00 USD Regular price $0.00 USD

    M12 to RJ45 Female Adapter - 1.5MThe Lowrance M12 to RJ45 Female Cable (1.5M) is primarily used to connect older or different marine electronics to standard...

  • Save $5.75 USD
    AMEC

    AMEC SB-181 TX Switch Box [AMEC-SB181-010]

    Regular price $57.50 USD
    Sale price $57.50 USD Regular price $63.25 USD

    SB-181 TX Switch Box The TX Switch Box SB-181 is specifically made to work with AMEC AIS Class B transceivers, both the 2W and 5W series. With...

  • Garmin

    Garmin Signal 6.5" External White Shallow Mount Speaker [010-13442-00]

    Regular price $69.99 USD
    Sale price $69.99 USD Regular price $0.00 USD

    Signal™ 6.5" External White Shallow Mount SpeakerMarinized speaker with a 15W RMS output provides loud and clear audio from compatible Garmin Signal marine VHF radios. The...

  • Garmin

    Garmin Signal 6.5" External Black Shallow Mount Speaker [010-13442-01]

    Regular price $69.99 USD
    Sale price $69.99 USD Regular price $0.00 USD

    Signal™ 6.5" External Black Shallow Mount SpeakerMarinized speaker with a 15W RMS output provides loud and clear audio from compatible Garmin Signal marine VHF radios. The...

  • Save $1.96 USD
    Digital Yacht

    Digital Yacht EnvironLINK NMEA 2000 Temperature/Humidity [ZDIGENVLINK]

    Regular price $267.99 USD
    Sale price $267.99 USD Regular price $269.95 USD

    EnvironLINK NMEA 2000 Temperature/HumidityAccurate and reliable weather information is essential for every boater.  While the internet provides a plethora of animated forecasts, there’s actually no substitute...

  • Digital Yacht

    Digital Yacht NS8 Network Switch - 8-Port, 1GB [ZDIGNS8]

    Regular price $219.99 USD
    Sale price $219.99 USD Regular price $0.00 USD

    NS8 Network Switch - 8-Port, 1GBDigital Yacht’s NS8 Network Switch is a rugged and reliable 8-port 10/100/1000 base-T network switch that is ideal for expanding a...

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