Gigabit Media Converters

Gigabit Media Converters: industrial, PoE, fiber-to-Ethernet for security. Browse specs for network.

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Unmanaged Media Converter Ethernet to Fiber, 4 SC Fiber Ports, 2 Gigabit RJ45, Plug-and-Play for Industrial & Commercial Use

A compact media converter ethernet to fiber with 4 SC fiber ports (1.25Gbps) and 2 Gigabit RJ45. Plug-and-play, no config needed. Metal case, wide temp range. Ideal for extending networks up to 120km.

CG402
Port Description

2 x 10/100/1000Mbps RJ45 (auto-negotiation, MDI/MDI-X) + 4 x 1.25Gbps SC fiber ports (multi-mode/single-mode support)
  • True plug-and-play media converter ethernet to fiber – no IP address, no VLAN, just connect and go
  • 4 SC fiber ports at 1.25Gbps for long-distance links up to 120km (single-mode)
  • 2 Gigabit RJ45 ports with auto-negotiation and auto MDI/MDI-X
  • Jumbo frame support up to 10K bytes reduces CPU overhead on file transfers
  • Metal housing with natural heat dissipation; works from -20°C to 60°C
  • Power draw below 4W – low operating cost for 24/7 deployment
  • Store-and-forward switching with 8K MAC table and full wire-speed forwarding









Extend Your Network Reliably with This Media Converter Ethernet to Fiber

If you need to connect distant devices or link separate buildings without signal loss, this unmanaged media converter ethernet to fiber does the job without extra hassle. It takes standard twisted-pair signals from your router or switch and converts them to fiber optic signals, pushing data up to 120 kilometers – far beyond the 100-meter limit of copper cabling. No software setup, no configuration menus; just plug in the power, connect your cables, and it starts forwarding traffic at wire speed.

Built for real-world environments, the metal casing sheds heat naturally so it can run 24/7 in equipment rooms, factory floors, or outdoor cabinets where temperatures range from -20°C to 60°C. The four SC fiber ports each run at 1.25Gbps, handling jumbo frames up to 10K for better throughput on large file transfers or video surveillance streams. Meanwhile, the two RJ45 ports automatically negotiate 10/100/1000Mbps and support half/full duplex plus MDI/MDI-X, so you can use straight or crossover cables without thinking about it.

This media converter ethernet to fiber is meant for IT administrators, system integrators, and small business owners who need a stable, low-maintenance link between offices, security cameras, or remote access points. With power consumption under 4 watts, it won’t add noticeable heat or electricity cost. And because it’s truly plug-and-play, you can hand it to a field technician and know the installation will take minutes, not hours.

Technical Specifications

Standards IEEE 802.3 10Base-T, 802.3u 100Base-TX, 802.3ab 1000Base-T, 802.3z 1000Base-SX/LX, 802.3x flow control
Fiber Ports 4 x SC (supports SC/FC/ST/SFP connector types by module)
Fiber Speed 1.25Gbps
Fiber Distance Multi-mode: 550m / 2km; Single-mode: 2/20/40/60/80/100km
Fiber Wavelength Multi-mode: 850nm / 1310nm; Single-mode: 1310nm / 1550nm / 1490nm
Ethernet Ports 2 x RJ45 10/100/1000Mbps auto-negotiation
Copper Distance 10Base-T: ≤250m (Cat3/4/5); 100/1000Base-T: ≤100m (Cat5)
Switching Capacity 12Gbps
Packet Forwarding Rate 8.928Mpps (64-byte packets)
MAC Address Table 8K
Buffer Memory 1Mb
Jumbo Frame 10K bytes
Forwarding Mode Store-and-forward (wire-speed)
Duplex Mode Half / Full duplex auto-negotiation
LED Indicators Power (green), Fiber SC1-SC4 (green), Link/Act TP1-TP2 (green)
Input Voltage DC 5~12V
Power Consumption ≤4W
Operating Temperature -20°C ~ 60°C
Storage Temperature -40°C ~ 85°C
Operating Humidity 5% ~ 95% (non-condensing)
Cooling Method Natural heat dissipation (fanless)
Dimensions (W×D×H) 159 × 77 × 27 mm
Weight 150g


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