




TP-Link TL-SM321B-2 1000Base-BX WDM Bi-Directional SFP Module
The TP-Link TL-SM321B-2 is a 1000Base-BX WDM Bi-Directional SFP Module designed for single-mode fiber networks. It uses Wavelength Division Multiplexing (WDM) technology to enable simultaneous bi-directional data transmission over a single fiber strand, reducing infrastructure costs. This module supports data rates up to 1Gbps and transmission distances up to 2km, making it suitable for mid-range campus networks, enterprise setups, and fiber extensions.
Featuring an LC duplex connector and transmit/receive wavelengths of 1310nm and 1550nm, the TL-SM321B-2 ensures reliable and high-performance connectivity. It is compatible with standard SFP slots on TP-Link and other networking devices, allowing seamless integration into existing network infrastructures. The compact form factor and robust performance make it an economical solution for expanding fiber networks.
This module is ideal for bandwidth-intensive applications such as video conferencing and cloud-based services, providing stable and secure connectivity. With its efficient design and long-distance transmission capabilities, the TL-SM321B-2 delivers outstanding value for businesses seeking reliable fiber connectivity.
| Type | 1000Base-BX WDM Bi-Directional SFP Module |
| Connector | LC duplex |
| Wavelengths | 1310nm (Tx) / 1550nm (Rx) |
| Transmission Distance | Up to 2km |
| Data Rate | 1Gbps |
| Compatibility | Works with standard SFP slots on TP-Link and other networking devices |
| Applications | Mid-range campus networks, enterprise setups, and fiber extensions |
Original: $37.72
-65%$37.72
$13.20Product Information
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Description
The TP-Link TL-SM321B-2 is a 1000Base-BX WDM Bi-Directional SFP Module designed for single-mode fiber networks. It uses Wavelength Division Multiplexing (WDM) technology to enable simultaneous bi-directional data transmission over a single fiber strand, reducing infrastructure costs. This module supports data rates up to 1Gbps and transmission distances up to 2km, making it suitable for mid-range campus networks, enterprise setups, and fiber extensions.
Featuring an LC duplex connector and transmit/receive wavelengths of 1310nm and 1550nm, the TL-SM321B-2 ensures reliable and high-performance connectivity. It is compatible with standard SFP slots on TP-Link and other networking devices, allowing seamless integration into existing network infrastructures. The compact form factor and robust performance make it an economical solution for expanding fiber networks.
This module is ideal for bandwidth-intensive applications such as video conferencing and cloud-based services, providing stable and secure connectivity. With its efficient design and long-distance transmission capabilities, the TL-SM321B-2 delivers outstanding value for businesses seeking reliable fiber connectivity.
| Type | 1000Base-BX WDM Bi-Directional SFP Module |
| Connector | LC duplex |
| Wavelengths | 1310nm (Tx) / 1550nm (Rx) |
| Transmission Distance | Up to 2km |
| Data Rate | 1Gbps |
| Compatibility | Works with standard SFP slots on TP-Link and other networking devices |
| Applications | Mid-range campus networks, enterprise setups, and fiber extensions |





















