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Small rectangular transceiver module with LC duplex port, matte black finish

Black Box Corporation

Black Box LFP442 SFP mini-GBIC switch module 1.25 Gigabit Ethernet

SKU CH-20HN-J0ZDA MPN LFP442

Single-mode fibre SFP module delivering 1.25 Gigabit Ethernet over LC duplex at 1000Base-LX

  • 25 Gigabit Ethernet speed for fast fiber links
  • 1000Base-LX single-mode support reaches long distances
  • LC duplex connector fits standard patch panels
  • RoHS and WEEE certified for environmental compliance
  • Compact 2.2 inch depth saves rack space

Module for single-mode fibre links

The Black Box LFP442 is an SFP mini-GBIC module built for 1.25 Gigabit Ethernet and 1.06 Gigabit Ethernet over single-mode fibre. It presents one LC duplex port operating at 1000Base-LX. Network engineers use it to extend data or optical networks across longer fibre runs.

Thermals noise and power

The module draws very little power and runs silently because it has no moving parts. Its compact size of .3 by .5 by 2.2 inches and light weight of .58 oz keep airflow unrestricted inside a populated switch chassis. RoHS and WEEE certifications confirm compliant materials.

Distance limited to 1000Base-LX reach

This transceiver only supports the 1000Base-LX standard on single-mode fibre, so link distance is fixed by that specification. Buyers who need multi-mode compatibility or a different wavelength must choose another module. The fixed LC duplex interface also means it cannot connect to SC or MPO patch cords without a hybrid cable.

How it compares

Measured against everything we stock in Switch Modules, Transceivers & Add-Ons, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 86% of the 1,517 comparable items (median $68.99).

Specifications

Product
Brand nameBlack Box
Size & build
Shipping weight0.45 kg
Package size117 × 56 × 25 mm

Questions about this item

How do I install the LFP442 module and what step is often missed?

Insert the module into an SFP slot until it clicks, then attach the LC duplex single-mode fiber; the step often missed is removing the dust caps from both the module and the fiber connectors before linking them.

What maintenance or replacement will the LFP442 need over time?

The module itself has no user-serviceable parts; plan to inspect and clean the LC duplex connectors periodically and replace the single-mode fiber patch cords if insertion loss rises beyond your link budget.

What limit appears first on the LFP442 during sustained 1.25 Gigabit Ethernet traffic?

The 1000Base-LX single-mode optics define the reach ceiling; the link will hit its distance or loss margin before the 1.25 Gbit/s line rate becomes a bottleneck.

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