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Black Box SFP transceiver module silver metal body LC port label LFP401

Black Box Corporation

Black Box SFP 155 Mbps 850 nm LC 2 km LFP401

SKU CH-WN7S-27N1B

An SFP transceiver adds 850 nm multimode fibre connectivity up to 155 Mbps over 2 km with extended diagnostics and a -40 to 85 °C operating range

  • Adapts any SFP slot to multimode fibre
  • Compatible with all standards up to 155 Mbps
  • Extended diagnostics simplify link troubleshooting
  • Operates reliably from -40° to +85° C
  • LC duplex connector covers 2 km links

Fiber Transceiver for 155 Mbps Links

This Small Form-Factor Pluggable transceiver adapts an SFP slot to a multimode fiber interface using an LC connector. It operates at a wavelength of 850 nm and supports link distances up to 2 km. The module is transparent to data protocols running at speeds up to 155 Mbps. Extended diagnostics provide additional link monitoring capability.

Industrial Temperature Range SFP

The transceiver functions across an extended temperature span from -40 °C to +85 °C, making it suitable for industrial or outdoor deployments where standard commercial modules would fail. Network operators needing higher bandwidth, single-mode fiber reach, or a different connector style should select a different module.

155 Mbps Maximum Data Rate

The decisive specification is the 155 Mbps speed ceiling, which determines whether this transceiver matches the port speed of the host equipment. Verify that the switch or router port operates at this rate before purchase.

How it compares

Measured against everything we stock in Drive Cages & Server Add-Ons, at today’s prices. Recalculated every night.

Price $48.99
Cheaper than about 63% of the 1,119 comparable items (median $74.99).

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Specifications

Product
Brand nameBlack Box Corporation

Questions about this item

Will the LFP401 work in my existing SFP slot that runs at 155 Mbps?

Yes, the LFP401 is transparent to data and compatible with any network standard operating at speeds up to 155 Mbps, so it will function in your current SFP slot.

How can I verify the LFP401 is operating correctly after installation?

The module supports extended diagnostics, allowing you to monitor its performance and confirm it is working as intended through your network equipment's management interface.

Does the LFP401 include the LC fiber patch cable needed for the 2 km link?

No, the LFP401 is the SFP transceiver only; you must purchase a separate LC duplex multimode fiber patch cable to complete the 2 km connection at 850 nm.

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