720073-3 20 Feet Ethernet Cable AS EC 20E - Reliable Humminbird Link

In this review of the 720073-3 20 Feet Ethernet Cable AS EC 20E from Bzumperyz, the bottom line is simple: this is a practical replacement cable for anglers and boaters who need a dependable Ethernet link between Humminbird units. The cable is designed to connect two Ethernet-capable devices or to tie a Humminbird control head into an accessory 5-port Ethernet switch, and it delivers stable data transfer with a moisture-resistant jacket. For anyone building a multi-unit network on a boat, the single biggest reason to buy is dependable, corrosion-resistant cabling that matches Humminbird models without fuss.

Key Features

• Compatibility: Works with HELIX 15/12/10/9/8/7 (G2N, G3N, G4N) and a broad range of 11xxci, 9xxci, 8xxci and 7xxci HD units, plus APEX, SOLIX and ONIX models, so it fits common Humminbird setups.
• Length: The 20 ft cable gives flexibility for routing between transducers, control heads and switches aboard a boat without tight bends.
• Use case: Designed specifically to connect two Ethernet-capable units or to join a control head to an AS ETH 5PXG 5-port switch as part of a larger network.
• Durability: Finished with moisture- and solvent-resistant material to resist water and corrosion and extend service life in marine environments.
• Extension option: Can be extended using the compatible AS ECX 30E cable when longer runs are required for larger installations.
• Support: Backed by a 30-day full refund policy and a 12-month warranty to provide buyer confidence.

Who It's For

This cable is aimed at boaters and anglers who use Humminbird multi-unit networks and need a straightforward replacement or additional run for their sonar and navigation electronics. It suits users who prefer OEM-style connectivity and who value corrosion-resistant materials for marine use.

It is not aimed at someone needing ultra-high-speed commercial networking beyond the intended marine electronics use, nor for users who require custom-terminated or nonstandard connector types; those buyers should seek a specialized data-cabling solution.

Pros & Cons

Pros

• Good functionality as a purpose-built link between Humminbird units for reliable data sharing.
• High-quality construction with moisture and solvent resistance enhances longevity in saltwater environments.
• Generous 20 ft length covers typical routing needs and can be extended with the AS ECX 30E.
• Value-oriented price point noted by customers who report strong performance for the cost.

Cons

• Limited to devices compatible with Humminbird Ethernet standards, so it is not a universal enterprise Ethernet cable.
• Source does not specify exact bandwidth or wire gauge, so advanced network diagnostics are not documented here.

Specifications

Our Verdict

The 720073-3 20 ft Ethernet Cable is a practical, good-value replacement for Humminbird networks, offering corrosion-resistant construction and the length most onboard installations need. Buyers who want a purpose-built cable to connect multiple Humminbird units or to hook a control head to a 5-port switch will find it reliable and economical.

Frequently Asked Questions

Will this cable work with my HELIX unit?
Yes, it is compatible with HELIX 15, 12, 10, 9, 8 and 7 (G2N, G3N, G4N) models.

Can I extend the cable if I need more length?
Yes, the product notes that the AS ECX 30E can be used for cable extension when longer runs are required.

What kind of warranty or return does it have?
It comes with a 30-day full refund option and a 12-month warranty from the date of purchase.