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TP-Link TL-SM321B Gigabit Single-Mode WDM Bi-Directional SFP Module 20km - TL-SM321B - [SG Ready Stock]

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ACO Profile: v1 • Last Run: 20 Jul 2026, 01:28 pm

TP-Link TL-SM321B Gigabit Single-Mode WDM Bi-Directional SFP Module 20km - TL-SM321B - [SG Ready Stock]

Product Highlights

  • 20km single-mode fiber range
  • WDM bi-directional transmission
  • Gigabit 1000Base-BX standard
  • LC/UPC simplex interface
  • 5 year manufacturer warranty

Description

TP-Link TL-SM321B SFP Module

Reliable gigabit fiber connectivity over single-mode fiber with WDM bi-directional transmission, designed for enterprise and campus network deployments.

Key Specifications

  • 1000Base-BX WDM Bi-Directional SFP Module
  • TX: 1310nm / RX: 1550nm wavelength
  • Up to 20 km transmission distance over 9/125μm single-mode fiber
  • LC/UPC simplex port interface
  • Metal housing construction
  • Operating temperature range 0–70 °C
  • Power consumption under 1.5W

Compatibility

Works with all standard SFP interface devices including network switches, routers, firewalls, NAS, servers, media converters and data centre hardware. Pair with matching TL-SM321A module for full duplex point-to-point fiber links.

Quality & Reliability

Manufactured with strict quality control testing before packing. Certified CE, FCC, RoHS compliant. Backed by 5 year manufacturer warranty.

SFP Module Application Diagram

TP-Link TL-SM321B Gigabit Single-Mode WDM Bi-Directional SFP Module 20km - TL-SM321B - [SG Ready Stock] | OmniCommerce - OmniCommerce