Gigabit Media Converters

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

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Unmanaged 8-Port Gigabit Fiber Optic Media Converter Switch, 8 SFP Uplink, Physical Isolation, Desktop & Rack-Mount for Industrial and Commercial Networks

8 Gigabit RJ45 ports + 8 SFP fiber uplinks in one plug-and-play switch. Physical isolation per port group ensures secure data transmission up to 120km. No configuration needed, low power, metal case.

CG808
Port Description

8x 10/100/1000Base-T RJ45 ports (auto MDI/MDI-X) + 8x 1000Base-X SFP slots (1.25G each).
  • 8 groups of physical isolation – each port-pair acts as an independent media converter
  • Plug-and-play, zero configuration – ideal for quick deployments
  • Supports up to 120km fiber distance (depending on SFP module)
  • 16K jumbo frame support for high-throughput data transfers
  • Fanless metal housing with built-in power supply, working from -20°C to 60°C
  • Low power consumption under 25W, reduces long-term operating cost









Why Choose a Fiber Optic Media Converter Switch for Your Network?

When you need to extend Ethernet beyond the usual 100-meter limit of twisted-pair copper, or when you require strict physical separation between network segments, a dedicated fiber optic media converter switch makes more sense than stacking separate converters. The CG808 is built exactly for that: it combines 8 Gigabit copper ports with 8 SFP slots and supports 8 groups of physical isolation. Each group works like an independent media converter pair, but inside a single metal enclosure. That means less cabling mess, fewer power adapters, and simpler maintenance for IT admins managing multi-tenant buildings, surveillance backhauls, or industrial control networks.

Setting it up takes seconds – just plug in your copper devices (PCs, cameras, servers) on the RJ45 side, insert the matching SFP modules for the fiber link, and power it on. No VLAN configs, no web login. The auto-negotiation handles speed and duplex automatically, and the cut-through switching keeps latency low. Because each group is physically isolated, traffic from one group cannot leak into another, which is critical for applications like banking, government, or any environment with compliance requirements.

The switch also handles jumbo frames up to 16K, useful when transferring large backups or video streams over fiber. And with a wide operating temperature range (-20°C to +60°C) and fanless natural cooling, it fits into dusty factory floors or outdoor cabinets without worrying about heat buildup or fan failures.

Who should consider this? System integrators deploying fiber to the desk or floor, building managers running segregated networks for tenants, and IT teams needing a simple way to bridge copper and fiber without sacrificing security. It’s not a managed switch, so you won’t get SNMP or VLANs, but if all you need is reliable, physically separate media conversion, this fiber optic media converter switch delivers at a price that beats buying separate converters.

Standards: IEEE802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3ab 1000Base-T, IEEE802.3z 1000Base-SX/LX, IEEE802.3x Flow Control

Ports: 8 RJ45 10/100/1000M (Cat5e+, max 100m) + 8 SFP 1000Base-X (1.25G, multimode up to 550m/2km, single-mode up to 120km)

Switching: Cut-through, Jumbo frame 16K, 8 isolation groups

Power: AC 100-240V internal, < 25W

Environment: -20°C to 60°C operating, -20°C to 85°C storage, 5%-95% humidity non-condensing

Mechanical: Metal case, 220x160x44mm, 0.87kg, desktop or rack-mount (bracket not included)

Indicators: Power (green), RJ45 LINK/ACT (green), SFP LINK/ACT (green)


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