Gigabit Ethernet Bidi Media Converter Pair - 20km Fiber Link

In this review of the Gigabit Ethernet Bidi Media Converter pair, the bottom line is practical: it is a budget-friendly, plug-and-play solution for extending copper Ethernet links to single-mode fiber over long distances. The reviewer found the kit particularly useful for small office and campus links where interference resistance and stable Gigabit throughput matter. The package ships with two media converters, two 1000Base-LX bidi SFPs and power adapters, and the primary reason to buy is the straightforward conversion between RJ45 and single-mode LC fiber that can reach up to 20 km.

Key Features

• Convert Fiber to Ethernet: Converts 10/100/1000Base-Tx copper to 1000Base-LX fiber or vice versa, providing a simple way to bridge copper and fiber segments.
• Smart Management: The single-mode Single LC optical port supports GbE and Tx1310/Rx1550 or Tx1550/Rx1310 wavelengths to enable bidirectional operation for fiber runs up to 20 km.
• High Compatibility: Equipped with an RTL8213B chip and compliant with IEEE 802.3 standards to ensure stable, low-latency data transfer and support for jumbo frames up to 9K bytes.
• Plug and Play: Modular design with hot-swappable components and LED indicators for TX, FX LINK/ACT, POWER and FDX makes deployment and troubleshooting fast and simple.
• Included Kit: The box contains two media converters, two bidi SFP transceivers, two DC adapters and a user manual, plus a one year warranty and lifetime tech support.

Who It's For

This kit is best for network administrators and installers who need a low-cost way to extend Gigabit Ethernet over single-mode fiber between buildings, floors, or long rack-to-rack links. It is especially useful where electromagnetic interference is a concern or where running copper is impractical.

It is not targeted at users who require managed switch features, advanced VLAN routing, or carrier-grade optical diagnostics; if you need SNMP monitoring, SFP diagnostic data or multi-service aggregation you should look at managed media converters or fiber switches instead.

Pros & Cons

Pros

• Includes a matched pair of media converters and bidi SFPs for quick fiber link setup without extra purchases.
• Supports true Gigabit speeds on RJ45 and 1.25Gbps optical port for stable throughput across fiber links.
• Hot-swappable design and clear LED indicators simplify installation and fault finding.
• Broad IEEE standards compatibility and jumbo frame support for varied network environments.

Cons

• Not a managed device; lacks advanced monitoring and configuration options beyond plug-and-play.
• The operating temperature range starts at 0C, which may limit outdoor or unheated enclosure installations without additional protection.

Specifications

Brand	SFPCABLES.COM.CO.,LTD
Ports	1x RJ45 10/100/1000M, 1x Single LC optical
Optical Wavelength	Tx1310/Rx1550 or Tx1550/Rx1310 (bidi)
Maximum Reach	Up to 20 km (kit dependent)
Included Items	2x media converters, 2x 1000Base-LX bidi SFPs, 2x DC adapters, manual
Standards	IEEE 802.3/802.3u/802.3z/802.3ab
Operating Temp	0C to 60C

Our Verdict

The Gigabit Ethernet Bidi Media Converter pair is an economical, no-frills way to add single-mode fiber links to an existing copper network. For installers who need reliable Gigabit conversion, simple LED status feedback and included bidi SFPs, this kit offers clear value. Those needing managed features or ruggedized temperature ranges should consider higher-end alternatives, but for basic long-distance GbE links this package delivers dependable performance at a modest price.

Frequently Asked Questions

Does this kit include the fiber transceivers?
Yes, the kit ships with two 1000Base-LX bidi SFP transceivers suitable for single-mode LC fiber links.

What is the maximum link distance?
The listed reach for the single-mode bidi configuration is up to 20 km depending on the kit and fiber quality.

Is any configuration required?
No configuration is required for basic use; the units are plug-and-play with LED indicators for link and activity status.