---
product_id: 738625616
title: "Networx Gigabit RJ45 Loopback Tester"
brand: "networx"
price: "¥658693"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/738625616-networx-gigabit-rj45-loopback-tester
store_origin: JP
region: Japan
---

# Gigabit speed testing Compact 9cm design RJ45 male connector Networx Gigabit RJ45 Loopback Tester

**Brand:** networx
**Price:** ¥658693
**Availability:** ✅ In Stock

## Summary

> 🔧 Test like a pro, anywhere, anytime!

## Quick Answers

- **What is this?** Networx Gigabit RJ45 Loopback Tester by networx
- **How much does it cost?** ¥658693 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/738625616-networx-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

- • **Compact & Portable:** Fits in tight spaces and your pocket for on-the-go troubleshooting
- • **Durable & Reliable:** Sturdy build designed for daily use by network pros
- • **Visual LED Feedback:** Clear switch link LED confirms connection status at a glance
- • **Plug & Play Simplicity:** Instantly diagnose network ports without bulky gear
- • **Precision Gigabit Testing:** Verify full gigabit Ethernet connectivity with ease

## Overview

The Networx Gigabit RJ45 Loopback Tester is a compact, durable tool designed for network technicians and PC pros to quickly verify Ethernet port integrity and gigabit connectivity. Its plug-and-play design with visual LED feedback eliminates the need for bulky equipment, making it an essential, portable device for efficient network troubleshooting.

## Description

Gigabit RJ45 loopback tester is a very user friendly cable tester. The architecture is also very simple. It seemingly looks like a simple plug, but its compact and sturdy design allows you to carry it in the narrowest corners, and it can be used. Simply plug the Networx(tm) Gigabit RJ45 loopback tester into the jack or suspicious jack you want to test. When the switch link LED is active, it means the connection is fully working. This loopback tester makes network administrators life truly easier. The Networx RJ45 loopback tester denies the need to carry bulky network hubs.

## Features

- You can easily check the wall and switch the connection without a cable
- Easily check wire breakage and short circuit
- A must have for every PC and network technician
- Very user friendly and simple device
- Compact design allows you to test even in the tightest corners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Gender | Male |
| Compatible Devices | PC |
| Color Name | Gigabit Loop Back |
| Item Shape | Round |
| Finish Type | Rj45 |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Networx |
| Manufacturer | Networx™ |
| Item Model Number | LB-GB45S |
| Special Features | Portable, Durable, Visual Feedback |
| Size | 1 |
| Cable Type | Ethernet |
| Product Dimensions | 9.04 x 8.26 x 1.98 cm; 27.22 g |
| Item Weight | 0.06 Pounds |

## Product Details

- **Compatible Devices:** PC
- **Specific Uses For Product:** PC
- **Connector Type:** RJ45
- **Color:** Gigabit Loop Back
- **Item dimensions L x W x H:** 9 x 8.3 x 2 cm

## Images

![Networx Gigabit RJ45 Loopback Tester - Image 1](https://m.media-amazon.com/images/I/716oy2Nyo5L.jpg)
![Networx Gigabit RJ45 Loopback Tester - Image 2](https://m.media-amazon.com/images/I/71vWhA4xaqL.jpg)
![Networx Gigabit RJ45 Loopback Tester - Image 3](https://m.media-amazon.com/images/I/61XkEDwYQ1L.jpg)
![Networx Gigabit RJ45 Loopback Tester - Image 4](https://m.media-amazon.com/images/I/812J632Xh7L.jpg)
![Networx 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/738625616-networx-gigabit-rj45-loopback-tester](https://www.desertcart.jp/products/738625616-networx-gigabit-rj45-loopback-tester)

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