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Compact metal network converter with one RJ45 and two SFP ports

TRENDnet

TRENDnet TFC-G21SFP 1000BASE-T to Dual SFP Media Converter

SKU CH-R76D-NWVRJ

Converts a Gigabit RJ-45 link to dual SFP fibre ports with automatic redundancy

  • Weight1.0500
  • Converts copper Gigabit Ethernet to dual fiber SFP links
  • Redundant SFP uplink maintains connection if one fiber link fails
  • SFP slots accept both multimode and single-mode modules
  • Auto-MDIX RJ-45 port enables full-duplex Gigabit at wire speed
  • Compact standalone converter meets NDAA and TAA compliance

Copper-to-Fiber Media Converter with Dual SFP

The TRENDnet TFC-G21SFP converts a 1000BASE-T copper Ethernet link into two independent 1G fiber connections using standard SFP modules. It serves network engineers and integrators who need to extend a single gigabit segment over multimode or single-mode fiber while keeping the copper endpoint unchanged.

Redundant Uplink Under Continuous Traffic

Dual SFP ports operate in a redundant mode so that if the active fiber link fails the second link takes over without manual intervention. The RJ-45 port runs full-duplex at wire speed, allowing sustained 1 Gbps throughput in both directions during prolonged transfers or streaming workloads.

Compact Metal Enclosure for Rack or Wall Mount

A rugged metal housing protects the circuitry and provides mounting ears for standard rack or wall installations. One RJ-45 connector with auto-MDIX and two SFP cages accept any combination of SX or LX modules, letting installers match fiber type and distance on site without replacing the converter.

Highlights

  • Converts copper Gigabit Ethernet to dual fiber SFP links
  • Redundant SFP uplink maintains connection if one fiber link fails
  • SFP slots accept both multimode and single-mode modules
  • Auto-MDIX RJ-45 port enables full-duplex Gigabit at wire speed
  • Compact standalone converter meets NDAA and TAA compliance

Specifications

BrandTRENDnet
ModelTFC-G21SFP
Weight1.0500

Questions about this item

Does the TFC-G21SFP run silently and stay cool when operated continuously?

The unit has no fan and uses a compact metal enclosure for passive heat dissipation, so it runs silently and stays cool during continuous operation.

What SFP modules do I need to use the two fiber ports on this converter?

You must supply your own 1 Gbps SFP transceivers — either multimode SX or single-mode LX — because the TFC-G21SFP ships with empty SFP cages.

Can I keep my existing Cat5e patch cables and gigabit switch when adding this TFC-G21SFP?

Yes, the Auto-MDIX RJ-45 port works with standard Cat5e or better copper cabling and connects directly to any 1000BASE-T switch port at full-duplex wire speed.

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