Please enter your email address and we’ll send you a link to reset your password right away.

Your VIP area awaits in the APP

Log in to the app to manage your account, orders, and exclusive benefits.

Order tracking

Order tracking

Personalized notifications

Personalized notifications

Exclusive offers

Exclusive offers

Staying signed in lets you shop faster, check your orders, and access your favorites without signing in again.

Stay signed in
Log out
top

Sold and shipped by

sales

Free shipping

Return of order

Homepage

Tp-link ISM321B-20 transceiver

Price without code 30.99

RRP:

You save:

Price without subscription

VAT & duties included

No extra charges at delivery.

What is my size?

What is my size?

My virtual fitting room

My virtual fitting room

Single purchase

Add to my pack 

You save:

Buy now in 1 click
Back to PC configurator

Buy this product and earn

Color:

Free shipping

dto_trans discount on shipping

Free assembly

Free removal of old appliance (only with Ader)

Your interest-free financing from with Klarna Paypal

Pay in 3, 4, 6 or up to 12 installments

My virtual fitting room

Other colors available

left
right

Perfect pairings

left
right

Reportar error

Trusted by over 25 million satisfied customers worldwide

Official brand warranty

Quick & easy 30-day return

Features of Tp-link ISM321B-20

Product description of Tp-link ISM321B-20 transceiver

Description summary

Extend your network´s reach up to 20km with the TP-LINK ISM321B-20 SFP Transceiver. This robust 1.25Gbps single-mode module ensures high-speed, reliable data transmission for demanding applications. Featuring hot-pluggable design for seamless installation and Digital Diagnostics Monitoring (DDM) for proactive troubleshooting, it guarantees maximum uptime and simplified network management. Its durable metal enclosure provides excellent EMI suppression and heat dissipation, making it ideal for enterprise, ISP, and campus networks. Build a powerful, long-range fiber optic infrastructure with this cost-effective and dependable solution

TP-LINK ISM321B-20 SFP Transceiver – 1.25G 20km Single-Mode Module

Expand your network´s reach with the robust and reliable TP-LINK ISM321B-20 SFP Transceiver. Designed for high performance and superior stability, this module is the ideal solution for extending your Gigabit Ethernet connections over long distances using single-mode fiber optic cabling. It empowers businesses, service providers, and campus networks to overcome the distance limitations of traditional copper wiring, ensuring high-speed data transmission between buildings, across facilities, or to remote network closets up to 20 kilometers away.

The TP-LINK ISM321B-20 is engineered to deliver consistent, full-duplex 1.25 Gbps performance, making it perfect for bandwidth-intensive applications such as high-definition video streaming, large file transfers, cloud computing, and VoIP services. Its hot-pluggable SFP (Small Form-factor Pluggable) design allows for seamless installation and replacement without powering down your network switch or router, guaranteeing maximum uptime and simplifying network maintenance and upgrades. This "plug-and-play" capability ensures that expanding your fiber network is a quick and efficient process.

Built for professional environments, this transceiver includes support for Digital Diagnostics Monitoring (DDM), also known as Digital Optical Monitoring (DOM). This crucial feature provides network administrators with real-time access to critical operating parameters, including optical transmit/receive power, module temperature, and supply voltage. By monitoring these metrics, you can proactively identify potential issues, troubleshoot connectivity problems more effectively, and ensure the long-term health and stability of your fiber optic links. The rugged metal enclosure provides excellent EMI suppression and heat dissipation, contributing to its outstanding reliability even in demanding data center and enterprise environments.

Key Features:

* Data Rate: 1.25 Gbps Gigabit Ethernet Speed
* Maximum Transmission Distance: 20 km (12.4 miles)
* Wavelength: 1310nm FP Laser and PIN photodetector
* Fiber Type: Single-Mode Fiber (SMF)
* Connector Type: Duplex LC Interface
* Digital Diagnostics Monitoring (DDM/DOM): Real-time monitoring of operational parameters
* Compliance: Fully compliant with the SFP Multi-Source Agreement (MSA)
* Construction: Low EMI metal enclosure for superior performance

Perfect for enterprise backbone connections, ISP networks, and large-scale campus LANs, the TP-LINK ISM321B-20 transceiver is a cost-effective and dependable choice for building and expanding a powerful, long-range fiber optic infrastructure. Trust in TP-LINK to provide the essential components for a fast, stable, and future-proof network

Technical specifications of Tp-link ISM321B-20

Features of Tp-link ISM321B-20

Color Silver

Color

Silver

Key differentiators

Technology in Tp-link ISM321B-20 transceiver

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Tp-link ISM321B-20 transceiver

Write a review about this product

Answer the question

Write your answer

The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

Ask a technical question about this product

Frequently bought together
Best sellers

Use cases

Best for

Benefits

Ideal buyer profiles

Competitive features

Where it excels

Consider alternatives if...

Verdict

Specs comparison

Specs vs competitors

Similar alternatives to this product
Related products viewed by other shoppers
We think you might be interested in this

You might also be interested in

Tradeinn works with its own stock and with more than 2,000 suppliers connected daily. We update availability in real time to offer you the widest possible catalog, always at the best price. Some products may require additional delivery time depending on supplier availability.

Quick & easy 30-day return

Secure & safe shopping

100% Satisfaction Guaranteed

Always the best online price

Loading image