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Pair of white media converters with SFP slots and RJ45 ports, two BiDi transceivers, two power adapters, manual

BFKK

BFKK Bidirectional Gigabit Media Converter Pair 550m

SKU CH-T4W1-WKB8K

A pair of bidirectional gigabit media converters with SFP transceivers extending Ethernet up to 550 metres over multi-mode fibre

  • Bidirectional fibre link up to 550 m with included LC transceivers
  • Gigabit copper port auto-negotiates 10/100/1000 Mbps for instant compatibility
  • Plug-and-play installation with LED status for power, link and duplex monitoring
  • Wide-range 100–240 V AC power supply with UL certification for global use
  • Operates reliably from 0 °C to 60 °C with jumbo frame support

Bidirectional Gigabit Media Converter Pair

This pair of bidirectional Gigabit media converters extends Ethernet over multi-mode fibre up to 550 metres. Each unit includes an SFP slot pre-populated with a BiDi LC dual transceiver. The set is aimed at installers and network engineers who need to bridge copper segments across longer distances without laying additional fibre strands.

UL Certified Power Supplies and Auto-Negotiation

Both converters ship with UL certified 100V-240V AC/DC adapters rated at 5V-1A for wide voltage compatibility. Front-panel LEDs show power, link activity and duplex status for quick diagnostics. RJ45 ports support 10/100/1000 auto-negotiation with MDI/MDIX auto-crossover, while the SFP side runs at 1.25Gbps full or half duplex on MMF.

Upgrade From Single-Strand Or Copper-Only Links

The kit replaces single-direction fibre pairs or copper runs limited to 100 metres, doubling reach on a single strand. It is not suited for installations requiring single-mode distances beyond 550 metres or for networks that need managed switching features such as VLAN tagging or SNMP monitoring.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $96.99
Pricier than about 74% of the 3,838 comparable items (median $41.99).

Specifications

No published specifications for this item yet.

Questions about this item

What does the 1.25 Gbps SFP port cap the link at in practice?

The 1.25 Gbps SFP port limits the fibre link to 1 Gbps full-duplex throughput, matching the 1000Base-SX standard.

What rack space or mounting hardware does each converter need?

Each unit is a compact desktop device with no rack ears included; it sits on a shelf or desk and only requires a nearby power outlet.

How are the converters installed and which step is often missed?

Connect the LC fibre patch cords with Tx matched to Rx on the opposite end, plug the RJ45 cables, then apply power — reversing the fibre pair is the common mistake.

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