Network Copper RJ45 to Fiber SC Singlemode Extender - 15 km Range

In this review of the Network Copper RJ45 to Fiber SC Singlemode Extender, the bottom line is simple: this compact media converter is for network installers and IT teams who need a straightforward, cost-effective way to push 10/100 Ethernet across long distances without changing switch hardware. The review finds the unit does exactly what it promises - converts RJ45 to singlemode SC fiber and reliably extends a 100Mb signal up to 15 km - making it a practical tool when distance and simplicity matter most.

Key Features

• Up to 15 km range: Extends a 10/100 Ethernet link over singlemode fiber as far as 15kM, allowing network nodes to be placed miles apart without complex routing.
• Automatic speed detection: The UTP port senses 10/100 Mb operation automatically so it works with mixed legacy equipment without manual configuration.
• MDI/MDI-X auto configuration: Eliminates the need for crossover cables by automatically handling straight and crossover connections at the RJ45 port.
• Duplex auto-detection: The converter auto-detects full or half duplex on the fiber port, simplifying integration into existing link topologies.
• Performance monitoring LEDs: Six front-panel LEDs provide immediate status information for link, activity and diagnostics during installation or troubleshooting.

Who It's For

This media converter is aimed at small IT departments, field technicians, and network integrators who must bridge Ethernet segments across campus, industrial sites, or remote buildings where laying copper is impractical. Its small form factor and simple power adapter make it suitable for rack, wall or shelf mounting in tight spaces.

It is not intended for those who need Gigabit throughput, managed switch features, or PoE support; sites requiring higher-than-100Mb speeds or integrated power delivery should consider fiber switches or transceivers that support those capabilities.

Pros & Cons

Pros

• Reliable long-distance extension up to 15kM for 10/100 Ethernet over singlemode fiber.
• Plug-and-play behavior with automatic MDI/MDI-X and speed sensing simplifies deployment.
• Compact design and six monitoring LEDs make installation and basic troubleshooting quick.
• Uses a standard small AC adapter so power is easy to source in most environments.

Cons

• Limited to 10/100 Mbps; not suitable where Gigabit bandwidth is required.
• No built-in PoE or advanced management features for centralized control.

Specifications

Product Type	10/100 UTP to Singlemode Fiber Media Converter
Fiber Connector	SC Duplex Singlemode
Wavelength	1310 nm
Maximum Range	Up to 15kM (approximately 9 mile)
Ethernet Speed	10/100 Mbps
Indicators	6 performance monitoring LEDs
Power	Small form factor AC adapter included

Our Verdict

This singlemode RJ45-to-SC media converter is a solid, economical choice for extending 10/100 Ethernet links over long distances where Gigabit speed is not required. It delivers useful installation conveniences like auto negotiation, MDI/MDI-X and diagnostic LEDs, making it good value for technicians who need a simple, reliable extender without advanced management or PoE.

Frequently Asked Questions

Can this unit carry Gigabit Ethernet?
Answer. No, it is designed for 10/100 Mbps links only and will not provide Gigabit throughput.

What fiber type and connector does it use?
Answer. It uses singlemode fiber with SC duplex connectors and operates at 1310 nm wavelength.

Is power included?
Answer. Yes, the package includes the media converter and a small form factor AC adapter for power.