KWRNVO Ethernet Adapter Cable for Humminbird 5‑Pin to 8‑Pin

KWRNVO’s 1.6ft 720074-1 Ethernet adapter cable links Humminbird fish finders for fast, reliable map and waypoint sharing between compatible HELIX and flagship units.

When you run multiple Humminbird displays on the same boat, a short, rugged Ethernet adapter keeps depth maps, waypoints and sensor data synchronized with minimal fuss. This 1.6‑foot 720074‑1 cable converts 5‑pin to 8‑pin connections and is built for saltwater use with waterproof metal connectors, oxygen‑free copper conductors and a UV‑resistant jacket.

Which Humminbird models will this adapter cable work with?

It’s designed to mate with a broad set of Humminbird units so you can network HELIX series displays and multiple flagship models without custom wiring. Use it where the manufacturer specifies the 720074‑1 adapter connection.

• HELIX 15/12/10/9/8 models
• HELIX 7 G2N, G3N, G4N generations
• Flagship units: 859, 899, 959, 999, 1159, 1199

How durable and weatherproof is the cable for marine use?

The cable is built for the harsh marine environment with multi‑layer protection to resist UV, salt and repeated connections. Rugged materials and construction reduce corrosion risk and keep signals stable.

• UV‑resistant outer jacket to prevent sun damage
• IPX8 waterproof metal connectors for immersion resistance
• Oxygen‑free copper conductors for consistent signal transfer
• Rated for over 100,000 mating cycles for long life

What can I expect when I install this 1.6ft adapter between two displays?

Installation is straightforward: connect the matching ports on each unit using the adapter and pair it with any additional specified cables or adapters. Once connected, data such as maps, sonar overlays and waypoints flows between displays for coordinated navigation and fishing strategies.

• Quick plug‑and‑play connection—no complex wiring
• Shares bathymetric data and synced waypoints in real time
• Works with two 720074‑1 adapters plus a custom Ethernet run for larger networks
• Compact 1.6ft length keeps connections neat and tidy

Will this cable affect sonar or networking performance?

When used as intended, the adapter maintains stable, low‑loss data transmission between units. Its construction—oxygen‑free copper and sealed connectors—minimizes interference and keeps the network performing reliably under normal boating conditions.

• Low‑resistance conductors for consistent data transfer
• Sealed connectors prevent corrosion that causes signal loss
• Short length reduces potential signal degradation

Who is this for: Boaters and anglers who run two or more compatible Humminbird displays and want a short, tough Ethernet adapter to share charts, sonar and waypoints quickly. It’s ideal for anglers upgrading multi‑display systems, marine technicians replacing worn connectors, or anyone needing a compact, waterproof 5‑pin to 8‑pin solution for HELIX and flagship Humminbird models.

Package includes one KWRNVO 720074‑1 1.6ft Ethernet adapter cable. Contact KWRNVO support for setup questions or compatibility checks.