Replacement Humminbird 720073-4 AS EC 30E Ethernet Cable - 30 ft

In this review the Replacement for Humminbird 720073-4 AS EC 30E Ethernet Cable is evaluated for boaters and marine electronics hobbyists who need a reliable 30 ft link between sonar heads or to an accessory switch. The bottom line: this is a straightforward, durable female-to-female Ethernet cord built to match OEM form and fit, and its biggest reason to buy is compatibility across many Humminbird SOLIX, HELIX, ONIX, ION and Series 1100/900/800/700 units so you can extend or repair a multi-device Ethernet network without reworking hardware.

Key Features

• Wide compatibility: Works with SOLIX, HELIX G2N, HELIX G1, ONIX, ION and specific 1100, 900, 800 and 700 series models so it fits many existing marine setups.
• 30 ft length: Provides ample slack to position displays or route cable through a console while maintaining a tidy, functional network layout.
• Female-to-female connectors: The 8-pin female-to-female configuration lets you connect two Ethernet-enabled devices directly or link to a 5-port accessory switch for multi-device networks.
• Premium materials: Rubber housing with copper conductors and aluminum alloy connector shells improve durability and resistance to corrosion in a marine environment.
• OEM-equivalent replacement: Sold as a direct replacement for the original part number, making it easy to swap into existing installations without modification.
• Support and warranty: Backed by a 30-day money-back guarantee and a one-year warranty to give buyers confidence in the purchase.

Who It's For

This cable is ideal for boat owners, anglers and marine electronics installers who already use Humminbird displays and need to extend or repair Ethernet links between heads, transducers and accessory switches. It is particularly useful for multi-unit networks that require a female-to-female connector and a longer reach than standard short jumpers.

Less suitable users include those who need a custom-length cable under 30 ft or installers requiring shielded, labeled professional wiring for complex, hardwired commercial vessels; for those needs a custom cable or professional installation may be preferable.

Pros & Cons

Pros

• High compatibility with many Humminbird series ensures interchangeability across multiple display models.
• Durable construction using copper conductors and aluminum alloy connector shells reduces corrosion risk in marine use.
• 30 ft length gives flexibility to route cable and connect distant devices without additional extenders.

Cons

• Single fixed length (30 ft) may be longer than required for some installations and could require management to avoid excess slack.

Specifications

Our Verdict

The 30 ft Replacement for Humminbird 720073-4 is a pragmatic, cost-effective cable for anyone maintaining or expanding a Humminbird Ethernet network. It delivers OEM-compatible connectors, durable materials suited to marine use and enough length for typical console layouts, making it good value for fishermen and installers who want a simple, reliable replacement without overpaying for branded originals.

Frequently Asked Questions

Will this cable connect two Humminbird displays directly?
Yes; the 8-pin female-to-female configuration is designed to link two Ethernet-enabled displays or connect a display to an accessory switch.

Is the cable suitable for marine environments?
The cable uses rubber housing, copper conductors and aluminum alloy connector shells for improved durability and corrosion resistance compared with basic cables.

Can I return it if it does not fit my setup?
Yes; the product is covered by a 30-day money-back guarantee and a one-year warranty for defects.