--- product_id: 97735136 title: "CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack)" brand: "cerrxian" price: "234 DH" currency: MAD in_stock: true reviews_count: 10 category: "Cerrxian" url: https://www.desertcart.ma/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2 store_origin: MA region: Morocco --- # 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:** 234 DH **Availability:** ✅ In Stock ## Summary > ⚡ Protect your network like a pro—because downtime is so last decade! ## Quick Answers - **What is this?** CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) by cerrxian - **How much does it cost?** 234 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/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 - • **Dual-Pack Value:** Two surge protectors included, perfect for safeguarding multiple critical devices simultaneously. - • **Plug & Play Simplicity:** No confusing input/output sides—just connect and protect instantly, indoors or outdoors. - • **Lightning-Ready Defense:** Built-in 8 TVS diodes shield your network from damaging surges and lightning strikes. - • **EMI Shielding Excellence:** Robust metal enclosure blocks electromagnetic interference for crystal-clear data flow. - • **Seamless Network Extension:** Easily connect two Ethernet cables to extend your network reach without signal loss. ## Overview The CERRXIAN Ethernet Surge Protector RJ45 Coupler (2-Pack) combines surge protection and network extension in a compact, metal-encased device. Featuring 8 TVS diodes, it safeguards your Ethernet connections from lightning and abnormal currents while maintaining a stable 100Mbps data rate. Its plug-and-play design with identical RJ45 female ports ensures hassle-free installation indoors or outdoors, making it an essential insurance policy for expensive routers, POE antennas, and critical network gear. ## Description Product description The destructive power of thundering is extremely large. It is not enough to rely on external thundering protection ( thundering rod). Thundering waves will indirectly or indirectly (through electromagnetic induction) invade electrical passages and metal passages (such as power cables, signal cables, antenna feeders and metal pipes). The resulting thundering overvoltage and surge voltage will cause great harm to electrical equipment, and information network systems. If the cables is damaged, the equipment will be damaged and the system will be paralyzed, resulting in an incalculable loss. Rapidly changing thundering currents induce high voltages on electrical loops and twin-wires that can damage the insulation of the system. Various operations of the power system can generate operating overvoltage on the power cable.Some electrical equipment switching operations and short circuit trips can generate overvoltage (surge voltage) higher than the normal working voltage in the power cable, thereby causing damage to the electrical equipment. Fixed interface shielding external EML,RFL and other electromagnetic interference. Built-in 8 TVS anti-detonator, prevent thundering and other abnormal current through the network cable damage to your computer equipment. Connector :RJ45 8 Pin Female to Female Size:26 x 24 x 45mm Colour: Black Package: 2 x Network Surge Protector Thundering protection, impact resistance, anti-vibration, anti-electromagnetic interference. Plug and play without the need to install tools. Easy to operate, compatible, and supports high power and low power devices. Compatible with cat5,cat5e cable How I installed Firstly The input of Network Surge Protector is connected to the external signal cable. Secondly The output of the Network Surge Protector is connected to the signal input of the protected device. Application Ethernet card, Repeater, HUB, Switchboard, Router or other Ethernet devices. ## 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 | #28,719 in Electronics ( See Top 100 in Electronics ) #231 in Surge Protectors | | Brand | CERRXIAN | | Color | black | | Compatible Devices | Personal Computer | | Customer Reviews | 4.4 out of 5 stars 318 Reviews | | Enclosure Material | Metal | | Item Dimensions L x W | 17.72"L x 10.24"W | | Item Weight | 0.02 Kilograms | | Manufacturer | Lemeng | | Mfr Part Number | cx-21 | | Model Number | 8541544724 | | Number of Outlets | 16 | | Number of Ports | 8 | | Other Special Features of the Product | Surge Protection | | Plug Type | Type A | | Power Plug Type | Type A - 2 pin (North American) | | Product Dimensions | 17.72"L x 10.24"W | | Recommended Uses For Product | Indoor, Outdoor | | Shape | Rectangle | | Special Feature | Surge Protection | | Total Power Outlets | 16 | | 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) ![CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) - Image 2](https://m.media-amazon.com/images/I/61GRSCjAr7L.jpg) ![CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) - Image 3](https://m.media-amazon.com/images/I/81Xs2bIIzJL.jpg) ![CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) - Image 4](https://m.media-amazon.com/images/I/719xTb4LakL.jpg) ![CERRXIAN RJ45 Coupler Ethernet Network Surge Protector Extension Adapter(2-Pack) - Image 5](https://m.media-amazon.com/images/I/81nAwOJpUrL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***T on August 3, 2019* ### ⭐⭐⭐⭐⭐ Review *by D***N on September 18, 2025* ### ⭐⭐⭐⭐ Review *by G***O on November 21, 2025* ## Frequently Bought Together - CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack) - VCE Coaxial Surge Lightning Protector for Coaxial TV Antenna and Satellite in-Line 75 Ohm 5-2500MHz, 2 Pack Silver - Gigabit Ethernet Surge Protector 10KV Lightning Suppressor LAN Network CAT5/CAT6 Thunder Arrestor 10/100/1000 Mbps --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ma/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2](https://www.desertcart.ma/products/97735136-cerrxian-rj45-coupler-ethernet-network-surge-protector-extension-adapter-2) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-05-20*