TP-Link SM321B-2 1000Base-BX WDM Bi-Directional SFP Module

£23.99

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The lowest price ( 24 March 2026 ): £23.99 SKU: SM321B-2 Category: Tags: , , , , Brand:

Description

The TP-Link SM321B-2 is a high-performance 1000Base-BX WDM bi-directional SFP transceiver module designed for professional networking applications. Engineered to deliver reliable gigabit connectivity over single-mode fibre, this module is ideal for businesses, data centres, and network administrators looking to extend their network infrastructure cost-effectively. With its hot-pluggable design and compatibility with standard SFP slots, the SM321B-2 offers seamless integration into existing network setups.

Bi-Directional WDM Technology

Utilising wavelength division multiplexing (WDM) technology, this module transmits and receives data on different wavelengths over a single fibre strand, reducing cabling costs and simplifying installation. The SM321B-2 operates at 1310nm TX/1550nm RX wavelengths, making it perfect for point-to-point connections up to 2km.

Gigabit Performance

Experience consistent 1000Mbps data transfer rates that ensure your network operates at peak efficiency. Whether you’re handling large file transfers, video streaming, or mission-critical applications, this SFP module delivers the bandwidth you need without compromise.

Hot-Swappable Convenience

The hot-pluggable design allows you to install or replace the module without powering down your network equipment, minimising downtime and maintaining business continuity. Simply insert the module into any compatible SFP port and you’re ready to go.

Enterprise-Grade Reliability

Built to TP-Link’s exacting standards, the SM321B-2 features robust construction and comprehensive compatibility with TP-Link switches and other standard SFP-equipped devices. Backed by quality assurance testing, this module ensures stable, long-term network performance.

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Additional information

Connectivity

Fibre Optic

Form Factor

SFP

Interface

1000Base-BX

Speed

1000Mbps

Compatibility

Standard SFP Slots

Lighting

No

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