--- product_id: 14213953 title: "Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs" brand: "networx" price: "₨8238" currency: LKR in_stock: true category: "Networx®" url: https://www.desertcart.lk/products/14213953-networx-gigabit-rj45-loopback-tester-10-100-1000base-t-network store_origin: LK region: Sri Lanka --- # Gigabit 1000Base-T support Loops all 4 wire pairs for echo test Gold-plated RJ45 for corrosion-free durability Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs **Brand:** networx **Price:** ₨8238 **Availability:** ✅ In Stock ## Summary > 🔧 Diagnose like a pro, connect like a boss. ## Quick Answers - **What is this?** Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs by networx - **How much does it cost?** ₨8238 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/14213953-networx-gigabit-rj45-loopback-tester-10-100-1000base-t-network) ## 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 - • **Universal RJ45 Fit:** Engineered to securely connect with all standard RJ45 ports—no adapters needed. - • **Instant Port Validation:** Verify active network ports and link status in seconds for zero downtime. - • **Rugged & Compact Design:** Durable molded PVC housing with gold-plated contacts built for daily professional use. - • **Full Gigabit Compatibility:** Supports modern 1000Base-T plus legacy 10/100 Ethernet for future-proof diagnostics. - • **Lifetime Warranty Assurance:** Backed by Networx’s lifetime warranty—trusted by network engineers and sysadmins alike. ## Overview The Networx Gigabit RJ45 Loopback Tester is a compact, professional-grade Ethernet diagnostic tool designed to instantly verify network port activity and link status. Supporting full 1000Base-T gigabit speeds and backward compatible with 10/100 Ethernet, it loops all four wire pairs for accurate echo testing on switches, NICs, and wall jacks. Built with a durable molded PVC housing and gold-plated contacts, it fits universally into standard RJ45 ports and comes with a lifetime warranty, making it an essential tool for network engineers, sysadmins, and installers. ## Description Professional Ethernet Diagnostics. Streamline your network troubleshooting with the Networx Gigabit Loopback Tester. Designed for professional diagnostics, this compact, molded adapter loops all four wire pairs to verify active network ports in seconds. It supports full echo tests and link verification on both modern Gigabit (1000Base-T) interfaces and standard 10/100 Ethernet. Engineered for universal compatibility, it connects seamlessly to any RJ45 port, providing the correct signal return for accurate testing of switches, server NICs, and wall jacks. ## Features - PROFESSIONAL NETWORK DIAGNOSTICS: Instantly verifies active network ports and link status. This molded adapter loops all four wire pairs (1-3, 2-6, 4-7, 5-8) to perform echo tests on switches, wall jacks, and NICs. - FULL GIGABIT SUPPORT: Unlike older testers, this unit supports modern 1000Base-T interfaces while maintaining backward compatibility with standard 10/100 Fast Ethernet. - UNIVERSAL COMPATIBILITY: Engineered to fit securely in all standard RJ45 ports. Provides the correct signal return for accurate diagnostics on unmanaged/managed switches and server hardware. - COMPACT & DURABLE: Built for the IT tool bag. Features a solid molded PVC housing and gold-plated contacts to ensure a corrosion-free connection for years of daily use. - LIFETIME WARRANTY: Backed by the Networx Lifetime Warranty. Ideal for Network Engineers, Sysadmins, and Installers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00E4OKGDE | | Best Sellers Rank | #44,384 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #85 in Network & Cable Testers | | Brand | Networx | | Color | Blue | | Compatible Devices | PC | | Connector Type | RJ45 | | Customer Reviews | 4.3 4.3 out of 5 stars (333) | | Finish | Rj45 | | Global Trade Identification Number | 00845425016560 | | Item Dimensions | 3.56 x 3.25 x 0.78 inches | | Item Weight | 27.22 g | | Manufacturer | Networx™ | | Mfr Part Number | LB-GB45S | | Model Number | LB-GB45S | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 845425016560 | | Unit Count | 1.0 Count | | Warranty Type | Lifetime | ## Product Details - **Brand:** Networx - **Color:** Blue - **Compatible Devices:** PC - **Connector Type:** RJ45 - **Item dimensions L x W x H:** 3.56 x 3.25 x 0.78 inches ## Images ![Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs - Image 1](https://m.media-amazon.com/images/I/716oy2Nyo5L.jpg) ![Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs - Image 2](https://m.media-amazon.com/images/I/71vWhA4xaqL.jpg) ![Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs - Image 3](https://m.media-amazon.com/images/I/61XkEDwYQ1L.jpg) ![Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs - Image 4](https://m.media-amazon.com/images/I/812J632Xh7L.jpg) ![Networx Gigabit RJ45 Loopback Tester - 10/100/1000Base-T Network Port Validator - Ethernet Diagnostic Tool for Switches and Server NICs - Image 5](https://m.media-amazon.com/images/I/61VutD5kpYL.jpg) ## Available Options This product comes in different **Style** options. ## 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) --- ## 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.lk/products/14213953-networx-gigabit-rj45-loopback-tester-10-100-1000base-t-network](https://www.desertcart.lk/products/14213953-networx-gigabit-rj45-loopback-tester-10-100-1000base-t-network) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-07-07*