---
product_id: 97735136
title: "CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack)"
brand: "cerrxian"
price: "£13.66"
currency: GBP
in_stock: true
category: "Cerrxian"
url: https://www.desertcart.co.uk/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2
store_origin: GB
region: United Kingdom
---

# 8 TVS surge suppressors 100Mbps data transmission RJ45 female-to-female coupler CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack)

**Brand:** cerrxian
**Price:** £13.66
**Availability:** ✅ In Stock

## Summary

> ⚡ Protect your network like a pro—surge defense meets seamless extension!

## Quick Answers

- **What is this?** CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) by cerrxian
- **How much does it cost?** £13.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2)

## Best For

- cerrxian enthusiasts

## Why This Product

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

## Key Features

- • **Lightning-Fast Defense:** Built-in 8 TVS diodes shield your network from damaging surges and lightning strikes ⚡
- • **Plug & Play Simplicity:** No confusing input/output sides—just connect and protect instantly, indoors or outdoors 🔌
- • **Reliable 100Mbps Speed:** Maintain smooth, uninterrupted data flow with stable 100Mbps transmission rates 🌐
- • **Seamless Network Extension:** Easily connect two Ethernet cables with the female-to-female RJ45 coupler for flexible setups 🔗
- • **EMI Shielding for Crystal Clear Signals:** Metal enclosure and fixed interface block electromagnetic interference to keep your connection pristine 🛡️

## Overview

The CERRXIAN Ethernet Surge Protector RJ45 Coupler (2-Pack) combines robust surge protection with convenient cable extension. Featuring 8 built-in TVS diodes, it safeguards your network devices from lightning and abnormal currents while supporting 100Mbps data speeds. Its metal shielding blocks electromagnetic interference, ensuring signal integrity. Designed for easy plug-and-play use with identical RJ45 female ports on both ends, it’s perfect for indoor and outdoor network setups.

## Description

desertcart.com: CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack) : Electronics

## Features

- PROTECTION EQUIPMENT - The Network Surge Protector Suppressors protects against network surges.Insert a Network Surge Protector in your network cables, to prevent network surging.This is a good insurance policy for your expensive router and outdoor POE antenna.
- EXTENSION - Use this RJ45 Coupler to connect two network cables into one longer network cable. When your network cable is too short and needs to be extended, using this dual-pass is a very good solution.Data transmission rate:100Mbps
- SURGE PROTECTION - Built-in 8 TVS anti-detonator, prevent lightning and other abnormal current through the network cable damage to your computer equipment.
- HIGH QUALITY - Fixed interface shielding external EML,RFL and other electromagnetic interference.Effectively prevent network signal damage.Using PC flame retardant raw materials, fire rating 100V0.
- EASY TO USE - Plug and play.There is no ""In"" or ""Out"" cable side of this device, both sides are identical RJ-45 Interface.Regardless of whether your protected device is behind any particular side, it can work properly by connecting the correct cables.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07LG32KFF |
| Best Sellers Rank | #16,847 in Electronics ( See Top 100 in Electronics ) #176 in Surge Protectors |
| Brand | CERRXIAN |
| Color | black |
| Compatible Devices | Personal Computer |
| Customer Reviews | 4.2 4.2 out of 5 stars (332) |
| Enclosure Material | Metal |
| Item Dimensions L x W | 17.72"L x 10.24"W |
| Item Weight | 0.02 kg |
| Manufacturer | Lemeng |
| Mfr Part Number | cx-21 |
| Model Number | 8541544724 |
| Number of Items | 2 |
| Number of Outlets | 16 |
| Number of Packs | 2 |
| Number of Ports | 8 |
| Other Special Features of the Product | Surge Protection |
| Plug Type | Type A |
| Recommended Uses For Product | Indoor, Outdoor |
| Shape | Rectangle |
| UPC | 680613035776 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** CERRXIAN
- **Color:** black
- **Product Dimensions:** 17.72"L x 10.24"W
- **Special Feature:** Surge Protection
- **Total Power Outlets:** 16

## Images

![CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) - Image 1](https://m.media-amazon.com/images/I/71auM+xxJrL.jpg)

## Questions & Answers

**Q: You don't know the difference between cm and mm... and I should trust your electrical design skills?**
A: Thank you for your suggestions and reading.We have fixed the error, please feel free to contact us if you have any other questions.

**Q: Were does a ground wire connect?**
A: No,it doesn't.But we have anoter version product which with a ground wire.

**Q: Will this work with PoE devices?**
A: Yes = that's what I used them for.

**Q: Does this not need a separate grounding wire?**
A: If your device is exposed to strong current, we recommend that you connect to a ground wire.

## Frequently Bought Together

- CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)
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**Shop now:** [https://www.desertcart.co.uk/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2](https://www.desertcart.co.uk/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-10-10*