---
product_id: 50281360
title: "TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable"
brand: "tp-link"
price: "€ 41.35"
currency: EUR
in_stock: true
reviews_count: 11
category: "Tp Link"
url: https://www.desertcart.gr/products/50281360-tp-link-sm311lm-gigabit-multi-mode-sfp-module-1000base-sx
store_origin: GR
region: Greece
---

# 1.25Gbps blazing speed Up to 550m reach Hot-swappable ease TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable

**Brand:** tp-link
**Price:** € 41.35
**Availability:** ✅ In Stock

## Summary

> 🚀 Future-proof your fiber network with effortless speed and reliability!

## Quick Answers

- **What is this?** TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable by tp-link
- **How much does it cost?** € 41.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/50281360-tp-link-sm311lm-gigabit-multi-mode-sfp-module-1000base-sx)

## Best For

- tp-link enthusiasts

## Why This Product

- Trusted tp-link brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Hot-Swap:** Seamlessly upgrade or replace modules without downtime thanks to SFP-MSA compliance and hot-swappable design.
- • **Blazing Gigabit Speed:** Experience ultra-reliable 1000Base-SX connectivity at a full 1.25Gbps—no compromises on your network performance.
- • **Real-Time Diagnostics:** Stay ahead with integrated Digital Diagnostics Monitoring (DDM) for instant performance insights and proactive maintenance.
- • **Extended Multi-Mode Reach:** Cover up to 550 meters with multi-mode fiber compatibility, perfect for sprawling offices and data centers.
- • **Precision Optical Transmission:** 850nm wavelength with LC/UPC connectors ensures crystal-clear, interference-free data flow every time.

## Overview

The TP-Link SM311LM is a high-performance Gigabit Multi-Mode SFP module designed for short-distance fiber optic networking. Supporting 1000Base-SX at 1.25Gbps and up to 550 meters transmission, it features an 850nm wavelength with LC/UPC connectors. Its hot-swappable, SFP-MSA compliant design allows easy installation without network interruption, while integrated Digital Diagnostics Monitoring provides real-time status tracking for optimal network management.

## Description

From the manufacturer Up to 500m Transmission Distance Stable Gigabit Connections without Speed Loss Easy to Use Comparison Table SM311LM SM311LS SM321A-2 SM321B-2 SM321A SM321B

Review: Worked fine - Worked fine from the start no problem Better as no copper cables for going outside and then back in Fibre easyer to run, some cables more durable and more reliable as no interfearence and less likely to break after movement as more durable core than copper Jus ashame that they are not universal so have to get apecial ones for sifferent companys devices True gigabit instead of coppers gigabit as copper looses some advertised speed in my experience
Review: Easy to set up - plug and play - Simple to install. . Works as expected

## Features

- Gigabit Multi-Mode Fibre Connectivity: Supports 1000Base-SX standard with up to 1.25Gbps data rate, delivering stable and high-speed fibre networking for short-distance applications
- Up to 550m Transmission Distance: Works with 50/125μm and 62.5/125μm multi-mode fibre, extending network distance up to 550m—ideal for offices, data centres, and campus networks
- 850nm Wavelength with LC Interface: Operates at 850nm wavelength with LC/UPC connector, ensuring reliable and efficient optical transmission
- Plug & Play with Hot-Swappable Design: SFP-MSA compliant and hot-swappable, allowing easy installation and replacement without interrupting network operation
- Real-Time Monitoring with DDM: Integrated Digital Diagnostics Monitoring (DDM) provides real-time status tracking for improved performance and maintenance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001800S6M |
| Actuator Type | Optics |
| Best Sellers Rank | 39,096 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 281 in Network Switches |
| Brand | TP-Link |
| Circuit Type | 1-way |
| Colour | Multicolour |
| Compatible Devices | Managed/Smart Switches with Fiber Optic Support |
| Connectivity Protocol | SFP |
| Connector Type | GLC or LC |
| Connector type | GLC or LC |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Contact type | Normally Open |
| Control Method | Touch |
| Control Type | remote |
| Controller Type | Amazon Alexa, Google Assistant |
| Country Of Origin | Netherlands |
| Current Rating | 2 Amps |
| Current rating | 2 Amps |
| Customer Reviews | 4.7 out of 5 stars 246 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| Global Trade Identification Number | 06935364030209 |
| Included Components | 1 X TP-Link MiniGBIC Module,IEEE 802.3z, CSMA/CD, TCP/IP, |
| International Protection Rating | IP00 |
| Item Dimensions | 43 x 31 x 21 millimetres |
| Item Part Number | TL-SM311LM |
| Item Weight | 1 Grams |
| Lower Temperature Rating | 10 Degrees Celsius |
| Manufacturer | TP-Link |
| Manufacturer Part Number | 135501061 |
| Material | Kupfer |
| Model Number | SM311LM |
| Mounting Type | Panel Mount |
| Number of Items | 96 |
| Number of Positions | 1 |
| Operating Voltage | 3.3 Volts |
| Operating voltage | 3.3 Volts |
| Operation Mode | Ieee |
| Operation mode | Ieee |
| Product Warranty | 1 Year Manufacturer |
| Smart Home Compatibility | Not Smart Home Compatible |
| Switch Type | Fiber Optic |
| Terminal | Blade |
| UPC | 851905138905 |
| Unit Count | 1.0 sztuk |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
| Wattage | 3600.0 |

## Product Details

- **Brand:** TP-Link
- **Connector type:** GLC or LC
- **Contact type:** Normally Open
- **Current rating:** 2 Amps
- **Item dimensions L x W x H:** 43 x 31 x 21 millimetres
- **Material:** Kupfer
- **Operating voltage:** 3.3 Volts
- **Operation mode:** Ieee
- **Switch type:** Fiber Optic
- **Terminal:** Blade

## Images

![TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable - Image 1](https://m.media-amazon.com/images/I/51FtBIKwUeL.jpg)
![TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable - Image 2](https://m.media-amazon.com/images/I/51Y91brSiYL.jpg)
![TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable - Image 3](https://m.media-amazon.com/images/I/51-n5+0JN9L.jpg)
![TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable - Image 4](https://m.media-amazon.com/images/I/51KpxASEa-L.jpg)
![TP-Link SM311LM Gigabit Multi-Mode SFP Module, 1000Base-SX, LC/UPC, 850nm, Up to 550m, DDM, SFP-MSA Compatible, Hot-Swappable - Image 5](https://m.media-amazon.com/images/I/619GyQUVyVL.jpg)

## Questions & Answers

**Q: What cable to use with this SFP?**
A: Hi,this module accepts fibre cable with LC connection, it then depends upon what its connecting to as you can get a variety of connections . For maximum potential it should be multimode duplex cable. But if its connecting to a single mode unit then you can downgrade the cable , though it will fit to the lowest mode fitted.Hope this helps, apologies for the delay in getting back to you.RegardsNM

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked fine
*by A***A on 10 December 2023*

Worked fine from the start no problem Better as no copper cables for going outside and then back in Fibre easyer to run, some cables more durable and more reliable as no interfearence and less likely to break after movement as more durable core than copper Jus ashame that they are not universal so have to get apecial ones for sifferent companys devices True gigabit instead of coppers gigabit as copper looses some advertised speed in my experience

### ⭐⭐⭐⭐⭐ Easy to set up - plug and play
*by B***S on 10 August 2024*

Simple to install. . Works as expected

### ⭐⭐⭐⭐⭐ Great Product
*by B***. on 14 March 2019*

Item was great. Great value for money

## Frequently Bought Together

- TP-Link TL-SM311LM MiniGBIC Module - 1.25Gbps, 1310nm, 3.3V, Single-mode, IEEE 802.3z - Silver, Automatic, Panel Mount
- TP-Link MC220L Optical Circuit Media Converter, Single Mode/10km Multimode/550M SFP Slot MiniGBIC

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-21*