---
product_id: 759536961
title: "Networx® CAT6 Gigabit RJ45 Loopback Tester"
brand: "networx®"
price: "¥7989"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/759536961-networx-cat6-gigabit-rj45-loopback-tester
store_origin: JP
region: Japan
---

# Gigabit CAT6 speed Compact, tight-corner design RJ45 loopback plug Networx® CAT6 Gigabit RJ45 Loopback Tester

**Brand:** networx®
**Price:** ¥7989
**Availability:** ✅ In Stock

## Summary

> 🔧 Test like a pro, anywhere, anytime!

## Quick Answers

- **What is this?** Networx® CAT6 Gigabit RJ45 Loopback Tester by networx®
- **How much does it cost?** ¥7989 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/759536961-networx-cat6-gigabit-rj45-loopback-tester)

## Best For

- networx® enthusiasts

## Why This Product

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

## Key Features

- • **Essential for Pros:** A must-have tool for every network technician’s kit
- • **Ultra-Compact Design:** Fits perfectly in the tightest network spaces
- • **Plug & Play Simplicity:** Instantly test connections without bulky gear
- • **Precision Fault Detection:** Quickly identify broken or shorted wires with ease
- • **Seamless Switch Compatibility:** Works flawlessly with active switch link LEDs

## Overview

The Networx® CAT6 Gigabit RJ45 Loopback Tester is a compact, user-friendly device designed for quick and accurate testing of Ethernet connections. It supports CAT6 speeds, plugs directly into RJ45 jacks, and helps network professionals easily detect wiring faults without bulky equipment.

## Description

A Networx CAT6 Gigabit RJ45 Loopback Tester is an exceedingly user friendly cable tester. Even the architecture is pretty simple. It looks like a simple plug at first glance but the compact, rugged design makes it highly portable and usable in the tightest corners. All you have to do is simply plug the Networx CAT6 Gigabit RJ45 loopback tester into the jack that you want to test or the one you are suspicious about. If the link LED on your switch is active, then that means that the connection is operating perfectly. These Loop back testers will make the life of a network administrator really easy. The Networx RJ45 Loop back tester will negate the necessity to carry a bulky network hub around.

## Features

- Check wall to switch connections easily without a cable
- Easily check for broken or shorted wires
- Must have for all pc and network technicians
- A very user friendly and simple device
- Compact design allows for testing in the tightest of corners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E4OKGDE |
| Best Sellers Rank | #44,898 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #92 in Network & Cable Testers |
| Customer Reviews | 4.4 4.4 out of 5 stars (367) |
| Date First Available | January 1, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.96 ounces |
| Item model number | LB-GB45S |
| Manufacturer | Networx™ |
| Product Dimensions | 3.56 x 3.25 x 0.78 inches |

## Product Details

- **Compatible devices:** PC
- **Specific uses for product:** PC
- **Connector type:** RJ45
- **Colour:** CAT6 1000 Mbits/s Gigabit RJ45 Loopback
- **Item dimensions L x W x H:** 9 x 8.3 x 2 centimetres

## Images

![Networx® CAT6 Gigabit RJ45 Loopback Tester - Image 1](https://m.media-amazon.com/images/I/716oy2Nyo5L.jpg)
![Networx® CAT6 Gigabit RJ45 Loopback Tester - Image 2](https://m.media-amazon.com/images/I/71vWhA4xaqL.jpg)
![Networx® CAT6 Gigabit RJ45 Loopback Tester - Image 3](https://m.media-amazon.com/images/I/61XkEDwYQ1L.jpg)
![Networx® CAT6 Gigabit RJ45 Loopback Tester - Image 4](https://m.media-amazon.com/images/I/812J632Xh7L.jpg)
![Networx® CAT6 Gigabit RJ45 Loopback Tester - Image 5](https://m.media-amazon.com/images/I/61VutD5kpYL.jpg)

## Questions & Answers

**Q: Is there any danger of using these to check ports in a power-over-ethernet (poe) switch?**
A: Only if you have done some crazy hardware alterations or a homicidal arch nemesis.

**Q: Will this work for 10Gbase-T connections over cat6a?**
A: It should. Cat6 should pass lower data rates just fine. You'll just get link lights or not.

**Q: Will this test if the eithernet port on my camera is working?**
A: It will be able to test Ethernet connection if your device  has a network card that transmit the signal.

**Q: Does this work on non-gigabit connections as well?**
A: Yes, this adapter is backwards compatible with non-gigabit connections.

## Frequently Bought Together

- Networx® CAT6 Gigabit RJ45 Loopback Tester
- LC/UPC Fiber Optic Circuitors Connector SM & MM Loopback Adapter Interface Signal Loop (LC/UPC SM-9/125)

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**Shop now:** [https://www.desertcart.jp/products/759536961-networx-cat6-gigabit-rj45-loopback-tester](https://www.desertcart.jp/products/759536961-networx-cat6-gigabit-rj45-loopback-tester)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*