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TP-Link TL-SM321A-2 Gigabit Single-Mode WDM Bi-Directional SFP Module - TL-SM321A-2 - [SG Ready Stock]

Name: TP-Link TL-SM321A-2 Gigabit Single-Mode WDM Bi-Directional SFP Module - TL-SM321A-2 - [SG Ready Stock]
Brand: TP-Link
SKU: TL-SM321A-2
Price: 41 SGD
Availability: InStock

Canonical URL: https://omnicommerce.sg/catalog/366c502b-7bd8-4859-8bc1-a1ffa2c459c3

ACO Profile: v1 • Last Run: 20 Jul 2026, 01:26 pm

TP-Link TL-SM321A-2 Gigabit Single-Mode WDM Bi-Directional SFP Module - TL-SM321A-2 - [SG Ready Stock]

Product Highlights

2 km Gigabit fiber range
Single cable bi-directional
Standard LC connector
5 year manufacturer warranty
Low 1.5W power draw

Description

Gigabit single-mode fiber connectivity over a single cable, with up to 2 km transmission range for campus, enterprise and ISP networks.

Product front view

Performance & Specifications

This TP-Link TL-SM321A-2 SFP module uses WDM bi-directional technology to transmit and receive full gigabit data over one single-mode fiber cable.

LC/UPC simplex connector
TX: 1550nm / RX: 1310nm wavelength
9/125 µm single-mode fiber compatible
Maximum transmission distance: 2 km

Connection diagram

Compatibility

Works with all standard SFP interface devices including network switches, routers, firewalls, NAS, servers, media converters and data centre hardware. Pair with TL-SM321B-2 for matched end-to-end fiber links.

Reliability

Built for continuous operation:

0–70 °C operating temperature range
Less than 1.5W low power consumption
Metal housing for durability
Full quality testing before shipping
Backed by 5 year manufacturer warranty

Reliability features

Important Note

This module operates at TX 1550nm / RX 1310nm. Matching remote modules must use the reverse wavelength pairing (TX 1310nm / RX 1550nm) for correct operation.

Purchase Links

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FAQs

What is the maximum transmission range of this SFP module?

This SFP module supports a maximum transmission distance of 2 km when used with standard 9/125 µm single-mode fiber cable.

Does this module work with standard SFP port devices?

Yes — this SFP module is compatible with all standard SFP interface devices including network switches, routers, firewalls, NAS, servers and media converters.

What module should I use at the opposite end of the fiber link?

Pair this TL-SM321A-2 module with the TL-SM321B-2 module for correct end-to-end operation. The paired unit uses reversed transmit and receive wavelengths.

What is the power consumption of this module?

This SFP module operates at less than 1.5W power draw during active use.

What connector type does this module use?

This SFP module uses a standard LC/UPC simplex fiber connector.

What warranty is provided with this module?

This SFP module comes with an official 5 year manufacturer warranty.

What operating temperature range is supported?

This module is rated for continuous operation between 0 °C and 70 °C ambient temperature.

Can this module be used with multi-mode fiber?

No — this SFP module is designed exclusively for use with 9/125 µm single-mode fiber cable only.

Signals

Intent Summary

Gigabit bi-directional single-mode SFP transceiver module for professional and enterprise fiber network deployments, providing reliable 1Gbps connectivity over 2km distance with standard SFP compatibility.

LLM Description

Professional gigabit fiber SFP module for reliable long distance network connectivity. Designed for enterprise, campus and ISP deployments with standard SFP compatibility and long warranty coverage.

Band Support

1310nm RX, 1550nm TX

Capable of

continuous 24/7 operation, full duplex 1Gbps fiber transmission, functions across 0–70 °C temperature, operates over single fiber cable, works with standard SFP ports

Coverage Area

2000m

Form Factor

standard SFP transceiver

Oem Vs Third Party

official OEM TP-Link

Port Count

Rohs Compliance

true

Router Brand Compatibility

all standard SFP enabled devices

Suitable for context

indoor controlled environment, long term hardware deployment, low power consumption requirement, paired fiber link endpoints, permanent network installation

Throughput Speed

1000Mbps

Used for audience

ISP technical staff, IT infrastructure teams, network administrators, small business IT managers, system integrators

Used for event

ISP last mile installation, campus network deployment, data centre rack cabling, enterprise fiber upgrade, office network expansion

Warranty Length

5 years

Trust Signals

Evidence Sources

1000Base-BX WDM Bi-Directional SFP Module (www.tp-link.com, external)
1000Base-BX WDM Bi-Directional SFP Module Datasheet (static.tp-link.com, external)
SFP Module (static.tp-link.com, external)
SM321A-2(UN)_V2_Installation Guide | Omada Network Support (support.omadanetworks.com, external)
TL-SM321A-2 | 1000Base-BX WDM Bi-Directional SFP Module | Omada Network Support (support.omadanetworks.com, external)
TL-SM321A-2 | 1000Base-BX WDM Bi-Directional SFP Module | TP-Link Singapore (www.omadanetworks.com, external)

Intents

Professional gigabit fiber SFP module for reliable long distance network connectivity. Designed for enterprise, campus and ISP deployments with standard SFP compatibility and long warranty coverage.

TP-Link 1Gbps single mode SFP module
TL-SM321A-2 2km transceiver
bi-directional WDM SFP Singapore
LC connector fiber module
5 year warranty SFP transceiver

Cultural Notes

singapore market

Local ready stock, 5 year warranty aligned with Singapore enterprise IT purchasing expectations, compliant with international safety standards accepted for commercial installations.

Seasonal Relevance

Autumn: 70%
Monsoon: 70%
Spring: 70%
Summer: 70%
Winter: 70%
Year Round: 100%