---
product_id: 150513261
title: "LC Fiber Optic Singlemode 9/125 Loopback Adapter for Fiber Cable Testing"
brand: "cablerack"
price: "€ 41.96"
currency: EUR
in_stock: true
category: "Cable Rack"
url: https://www.desertcart.at/products/150513261-lc-fiber-optic-singlemode-9-125-loopback-adapter-for-fiber
store_origin: AT
region: Austria
---

# Supports blazing 100Gbps data rates Durable LC duplex snaplock connector Precision PC polish reduces insertion loss LC Fiber Optic Singlemode 9/125 Loopback Adapter for Fiber Cable Testing

**Brand:** cablerack
**Price:** € 41.96
**Availability:** ✅ In Stock

## Summary

> 🚀 Test Like a Pro, Fail Never: The Ultimate LC Fiber Loopback Adapter

## Quick Answers

- **What is this?** LC Fiber Optic Singlemode 9/125 Loopback Adapter for Fiber Cable Testing by cablerack
- **How much does it cost?** € 41.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/150513261-lc-fiber-optic-singlemode-9-125-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

- • **Compact & Portable Design:** Easily fits into any fiber test kit, making on-the-go diagnostics effortless and efficient.
- • **Blazing 100Gbps Testing Power:** Ensure your singlemode SFP and SFP+ transceivers perform flawlessly at ultra-high speeds.
- • **Precision-Engineered PC Polish:** Minimizes insertion loss for the most accurate and reliable fiber optic testing results.
- • **Rugged Durability for Daily Use:** Built tough with a protective outer shell to withstand constant testing in demanding environments.
- • **Universal Singlemode Compatibility:** Seamlessly test OS1 and OS2 9/125 fiber types without compatibility worries.

## Overview

The LC Fiber Optic Singlemode 9/125 Loopback Adapter by CableRack is a compact, durable testing tool designed for high-speed singlemode fiber optics. Supporting data rates up to 100Gbps, it features a rugged LC duplex snaplock connector with precision PC polish to reduce insertion loss. Compatible with OS1 and OS2 fiber types, this adapter is essential for professionals ensuring flawless performance of SFP and SFP+ transceivers in data centers and wiring closets.

## 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 singlemode 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
- ✅ Singlemode optical glass is baccompatible with both OS1 and OS2 type 9/125 singlemode fiber, so you'll have no issue testing older media types with this loopback

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WTXW6ZQ |
| Best Sellers Rank | #238,173 in Electronics ( See Top 100 in Electronics ) #1,252 in Fiber Optic Cables |
| Brand Name | CableRack |
| Cable Type | Fiber Optic |
| Color | LC SM |
| Compatible Devices | PC |
| Connector Gender | Male-to-Male |
| Connector Type | RJ45 |
| Customer Reviews | 4.8 4.8 out of 5 stars (22) |
| Data Transfer Rate | 100 gigabits_per_second |
| Frequency | 100 GHz |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Item Weight | 1.6 ounces |
| Manufacturer | CableRack |
| Model | JBX18124 |
| Number of Pins | 4 |
| Other Special Features of the Product | Compact,Optic |
| Part Number | JBX18124 |
| Recommended Uses For Product | fiber optic testing, troubleshooting, and verifying optics in data centers or wiring closets |
| UPC | 848243001435 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** CableRack
- **Cable Type:** Fiber Optic
- **Compatible Devices:** PC
- **Connector Type:** RJ45
- **Special Feature:** Compact,Optic

## Images

![LC Fiber Optic Singlemode 9/125 Loopback Adapter for Fiber Cable Testing - Image 1](https://m.media-amazon.com/images/I/51+SpdbdMNL.jpg)

## Available Options

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

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-10-24*