We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
A pair of small white network boxes with dual SC ports and RJ45 jacks

BFKK

BFKK Single Mode Dual SC Fiber Media Converter Pair 30km 1310nm

SKU CH-GZC4-B0VFG

A pair of single-mode dual SC fiber media converters extending gigabit Ethernet up to 30 km at 1310 nm with RJ45 copper ports and LED status monitoring

  • Gigabit fiber link up to 30 km
  • 25 Gbps throughput over single-mode 1310 nm fiber
  • Auto-negotiating RJ45 ports for 10/100/1000 Mbps copper
  • UL-certified power adapters with LED status monitoring
  • Compact wall-mountable design operates 0 °C to 60 °C

BFKK Single-Mode Dual SC Pair

This BFKK pair converts Gigabit Ethernet between copper RJ45 and single-mode SC fibre. Each unit handles 10/100/1000Base-T on the copper side and 1000Base-SX on the fibre side at 1310 nm. They operate from an AC 100V to 240V supply with an included 5V 1A adapter. The set is designed for point-to-point links up to 30km (18.6 miles).

Suited for long-haul copper-to-fibre links

Network engineers extending LAN segments across campuses, between buildings or to remote cabinets will find the 30km reach and jumbo 9K frame support useful. The wide 0°C to 60°C range suits industrial or outdoor enclosures. Buyers needing multimode fibre, SFP slots or distances beyond 30km should look at other converter types.

Handles 30km single-mode runs with 9K frames

The converters comfortably carry full-duplex Gigabit traffic with ultra-low latency across the rated 30km span. IEEE 802.3/802.3u/802.3z/802.3ab compliance ensures interoperability with standard switches. They run out of reach beyond 30km and do not support 10Gbps or WDM single-strand operation.

Highlights

  • Gigabit fiber link up to 30 km
  • 25 Gbps throughput over single-mode 1310 nm fiber
  • Auto-negotiating RJ45 ports for 10/100/1000 Mbps copper
  • UL-certified power adapters with LED status monitoring
  • Compact wall-mountable design operates 0 °C to 60 °C

Specifications

No published specifications for this item yet.

Questions about this item

What single-mode fibre cable and patch leads do I need to connect the dual SC ports on these converters?

You need single-mode fibre (SMF) terminated with SC connectors operating at 1310 nm, rated for up to 30 km (18.6 miles).

Will the RJ45 ports auto-negotiate speed and duplex with my older 10/100 Mbps switches and PCs?

Yes, the 10/100/1000Base-T RJ45 ports support auto-negotiation and auto-MDIX, so they will link at 10 M, 100 M or 1000 M with legacy gear.

Which LED indicators should be lit to confirm the fibre link is up and passing traffic after I power the pair?

POWER solid, FX LINK/ACT solid or blinking for the fibre link, and TX blinking as data passes; FDX shows full-duplex operation.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.