Gigabit SFP Module 1000Base-ZX LC 1550nm 80km - Reliable Long-Reach

In this review the Gigabit SFP Module 1000Base-ZX LC is presented as a focused, no-nonsense optical transceiver for network engineers and IT teams that need single-mode long-reach connectivity. The module is 100% compatible with H3C JD063B and many open switches, and the single biggest reason to buy is its consistent 80 km reach at 1550nm while maintaining 1.25 Gbps operation, making it a practical choice for linking distant switches, remote cabinets, or campus buildings without expensive leased lines.

Key Features

• Compatibility: Works with H3C JD063B, HPE FlexNetwork and FlexFabric switches and a range of open switch platforms for easy integration.
• Long reach: Supports distances up to 80 km over single-mode fiber, useful for connecting sites across a campus or between buildings without regeneration.
• Data rate and connector: Supports up to 1.25 Gbps and uses a duplex LC connector for common fiber patching and compatibility with existing cabling.
• Monitoring: Includes DDM/DOM support so administrators can monitor TX power, RX power and other diagnostics to troubleshoot links.
• Quality assurance: Each module is individually tested on switches before shipping, reducing the risk of DOA units and simplifying deployment.
• Support and warranty: Backed by a 30-day free return policy, a three-year warranty and lifetime technical support for peace of mind after purchase.

Who It's For

The module is best for IT professionals, service providers, and system integrators who need a cost-effective, long-distance SFP solution for single-mode fiber runs up to 80 km. It fits sites using H3C or HPE Flex switches as well as many open switch environments where vendor-compatible transceivers are required.

It is less suitable for environments that require multimode fiber, higher-than-gigabit speeds, or extended temperature ranges below 0C; customers needing higher bandwidth or industrial-temperature grades should look at modules specified for those conditions.

Pros & Cons

Pros

• Good value for long-reach single-mode links up to 80 km with 1550nm wavelength.
• Plug-and-play hot-pluggable design and duplex LC connector make installation straightforward.
• DDM support and pre-shipment testing provide useful diagnostics and reliability out of the box.
• Positive user feedback on functionality, upload speed and overall quality supports real-world performance.

Cons

• Limited to 1.25 Gbps so not intended for 10G or higher uplinks.
• Commercial temperature range 0 to 70C may not suit harsh outdoor or industrial enclosures without climate control.

Specifications

Our Verdict

The Gigabit SFP Module 1000Base-ZX LC is a practical choice for organizations that need reliable long-reach single-mode links without paying for higher-speed optics. Its combination of 80 km reach, DDM monitoring, vendor compatibility and pre-test quality control makes it a strong value for campus links and remote site connections, provided the project requirements are within the 1.25 Gbps and commercial temperature envelope.

Frequently Asked Questions

Will this work in H3C JD063B switches?
Yes, the module is listed as compatible with H3C JD063B and has been tested for compatibility.

Can it reach 80 km reliably?
Yes, the transceiver is specified for distances up to 80 km over single-mode fiber when used within the stated TX power and receiver sensitivity ranges.

Does it provide monitoring data?
Yes, the module supports DDM/DOM so you can read diagnostics like TX/RX power and temperature from supported switches.