---
product_id: 209715898
title: "LC Fiber Optic Multimode OM3 OM4 Loopback Adapter for Fiber Cable Testing"
brand: "cablerack"
price: "€ 28.94"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.it/products/209715898-lc-fiber-optic-multimode-om3-om4-loopback-adapter-for-fiber
store_origin: IT
region: Italy
---

# Supports 1Gb, 10Gb, 100Gb speeds OM4 glass backward compatible with OM3 & OM2 Durable outer shell for long-lasting use LC Fiber Optic Multimode OM3 OM4 Loopback Adapter for Fiber Cable Testing

**Brand:** cablerack
**Price:** € 28.94
**Availability:** ✅ In Stock

## Summary

> 🔌 Plug into precision — test smarter, not harder!

## Quick Answers

- **What is this?** LC Fiber Optic Multimode OM3 OM4 Loopback Adapter for Fiber Cable Testing by cablerack
- **How much does it cost?** € 28.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/209715898-lc-fiber-optic-multimode-om3-om4-loopback-adapter-for-fiber)

## Best For

- cablerack enthusiasts

## Why This Product

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

## Key Features

- • **Rugged reliability:** Built tough with a protective shell to withstand daily field use without fail
- • **Compact & essential:** A must-have, space-saving loopback adapter that fits perfectly in any fiber test kit
- • **Universal compatibility:** OM4 fiber glass works flawlessly with older OM3 and OM2 cables—future-proof your toolkit
- • **Lightning-fast testing speeds:** Seamlessly validate multimode SFP/SFP+ transceivers at up to 100Gbps
- • **Precision polish for peak performance:** Physical Contact (PC) polish minimizes insertion loss for accurate, consistent results

## Overview

The LC Fiber Optic Multimode OM3 OM4 Loopback Adapter is a compact, durable testing tool designed for multimode SFP and SFP+ transceivers. Supporting 1Gb, 10Gb, and 100Gb speeds, it features OM4 glass compatible with older fiber types, a rugged outer shell, and PC-polished connectors to ensure low insertion loss and reliable performance in fiber cable testing.

## Description

Testing, troubleshooting and verifying optics in the datacenter or wiring closet can make the difference between a successfule project and one that does not ever seem to perform well. Having great tools available to assist in the evaluation and documentation of optic performance. Know for sure that your optics are up to the task by testing them first.

## Features

- ✅ Quickly test multimodemode SFP and SFP+ Fiber Transceivers at 1Gb, 10GB and 100GB rates with this compact LC fiber loopback
- ✅ Any fiber test kit should include one of these durable multimode fiber loopback modules to ensure
- ✅ This LC duplex snaplock connector is the standard found in new SFP modules and LC couplers. The glass fiber is protected with a durable outer shell to ensure a long life for this important test tool
- ✅ Each LC connector features a physical contact (PC) polish to reduce insertion loss during testing
- ✅ OM4 optical glass is backwards compatible to OM3 and OM2 type 50/125 multimode fiber, so you'll have no issue testing older media types with this loopback

## Product Details

- **Brand:** CableRack
- **Connector Type:** Optical
- **Cable Type:** Fiber Optic
- **Compatible Devices:** PC
- **Special Feature:** Compact

## Images

![LC Fiber Optic Multimode OM3 OM4 Loopback Adapter for Fiber Cable Testing - Image 1](https://m.media-amazon.com/images/I/510SJ4a2LjL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ LC loop back tester
*by A***R on July 21, 2024*

Love it I’m a fiber technician and network engineer. Perfect for testing

### ⭐⭐⭐⭐⭐ Reliable and sturdy
*by S***Z on March 18, 2023*

Does everything an MPO loopback should.

### ⭐⭐⭐⭐⭐ Would recommend
*by J***K on March 21, 2021*

Does it's job

---

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**Shop now:** [https://www.desertcart.it/products/209715898-lc-fiber-optic-multimode-om3-om4-loopback-adapter-for-fiber](https://www.desertcart.it/products/209715898-lc-fiber-optic-multimode-om3-om4-loopback-adapter-for-fiber)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-15*