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

The TP-Link TL-SM321B is a 1000Base-BX WDM Bi-Directional SFP Module designed for high-speed networking over single-mode fiber. It uses Wavelength Division Multiplexing (WDM) technology to transmit and receive data over a single fiber strand, operating at wavelengths of 1310nm for transmission and 1550nm for reception. This module supports transmission distances of up to 10 kilometres, making it suitable for campus networks, enterprise infrastructure, and data centre applications.

The module features an LC duplex connector and is compatible with standard SFP ports on TP-Link and other networking devices. It delivers a 1Gbps data rate for stable and efficient performance in bandwidth-intensive tasks such as video streaming and data backup. The compact design ensures seamless integration into existing network setups.

This SFP module is a cost-effective solution for extending network reach while minimising infrastructure costs. It is backed by a 5-year local warranty and is an authorised reseller product with genuine components.

Type	1000Base-BX WDM Bi-Directional SFP Module
Connector	LC duplex
Wavelengths	1310nm (Tx) / 1550nm (Rx)
Transmission Distance	Up to 10 km
Data Rate	1 Gbps
Fiber Type	Single-mode
Compatibility	Standard SFP ports on TP-Link and other devices
Applications	Campus networks, enterprise infrastructure, fiber connections