--- product_id: 55855271 title: "LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue" brand: "yienfbev" price: "S/.57" currency: PEN in_stock: true reviews_count: 8 category: "Yienfbev" url: https://www.desertcart.pe/products/55855271-lc-fiber-optic-loopback-adapter-lc-singlemode-9-125-tester store_origin: PE region: Peru --- # Ultra-low insertion loss ≤0.20dB for precision testing Bending insensitive Singlemode 9/125 fiber for reliable signal Duplex LC connectors for seamless pairing LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue **Brand:** yienfbev **Price:** S/.57 **Availability:** ✅ In Stock ## Summary > 🔗 Connect with Confidence — The Ultimate Fiber Loopback for Next-Level Network Testing ## Quick Answers - **What is this?** LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue by yienfbev - **How much does it cost?** S/.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/55855271-lc-fiber-optic-loopback-adapter-lc-singlemode-9-125-tester) ## Best For - yienfbev enthusiasts ## Why This Product - Trusted yienfbev brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Duplex Design:** Standard duplex LC clips ensure effortless, accurate insertion every time - • **Industry-Standard Compliance:** Meets Telcordia GR326 and RoHS for trusted, eco-friendly use - • **Versatile Testing Powerhouse:** Ideal for R&D, telecom, FTTX, patch panels, and equipment interconnection - • **Built to Last in Any Environment:** Durability with ≤0.20dB change over 1,000 matings and wide temp range (-20°C to 70°C) - • **Precision Tested for Peak Performance:** 100% functionally tested to guarantee flawless signal integrity ## Overview The LC Fiber Optic Loopback Adapter features duplex LC connectors and bending insensitive Singlemode 9/125 fiber, delivering ultra-low insertion loss (≤0.20dB) and high return loss (≥50dB). Fully tested for durability and compliance with Telcordia GR326 and RoHS standards, it’s engineered for precision fiber optic testing, network restoration, and equipment interconnection across demanding environments. ## Description Fiber Loopback is designed to provide a media of return path for a fiber optic signal, typically it is used for fiber optic testing applications or network restorations and it is absolutely an economical solution for a number of fiber optic test applications.Specifications:Type: Loopback Module Test wavelength: 1,310 and 1,550nm Fiber: Bending insensitive Singlemode 9/125 Connector: LC/UPC Insertion loss: Typical: ≤0.20dB Maximum: ≤0.30dB Return loss: UPC: ≥50.0dB Repeatability: ≤0.10dB Interchangeability: ≤0.20dB Durability: ≤0.20dB typical change, 1,000 mating Operating temperature: -20 to +70 degrees Storage temperature: -40 to +85 degrees Applications:R&DFiber labsTelecom testingFTTX testingPatch panel applicationsEquipment interconnection Review: Great value! - Arrived on time. Added to Fiber tool chest. Review: Thanks - Great buy ## Features - Standard Duplex LC connectors, Bending insensitive Singlemode 9/125 fiber - Ease and accuracy of insertion as duplex clips hold connectors together - 100% functionally tested guaranteeing performance and integrity - Used in Singlemode 9/125 Fiber for Testing Application - Meets the Telcordia and GR326 stander, all materials compliant with RoHS requirement. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0755K87P3 | | Best Sellers Rank | #45,862 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Fiber Optic Connectors | | Brand | YIENFBEV | | Cable Type | Fiber Optic | | Color | Blue | | Compatible Devices | Modem | | Connector Gender | Male-to-Female | | Connector Type | LC | | Customer Package Type | Coiled in protective tubing or sealed anti-static bag | | Date First Available | July 19, 2017 | | Indoor/Outdoor Usage | Indoor, Outdoor | | Is Discontinued By Manufacturer | No | | Item Weight | 0.25 ounces | | Item model number | 742354861707 | | Manufacturer | Comm cable | | Model Name | LC Fiber Optic Loopback Adapter | | Number of Items | 1 | | Number of Pins | 2 | | Outer Material | Cardboard | | Package Dimensions | 5 x 3 x 0.5 inches | | Recommended Uses For Product | R&D, fiber labs, telecom testing, FTTX testing, patch panel applications, equipment interconnection | | Shape | Round | | Special Feature | Data Transfer | | Specification Met | RoHS | | UPC | 742354861707 | | Unit Count | 1 Count | ## Product Details - **Brand:** YIENFBEV - **Cable Type:** Fiber Optic - **Compatible Devices:** Modem - **Connector Type:** LC - **Special Feature:** Data Transfer ## Images ![LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Image 1](https://m.media-amazon.com/images/I/41e3Wyl7PZL.jpg) ![LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Image 2](https://m.media-amazon.com/images/I/51qRawcFoOL.jpg) ![LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Image 3](https://m.media-amazon.com/images/I/61HnNlSKgPL.jpg) ![LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Image 4](https://m.media-amazon.com/images/I/51YE7ZQg2sL.jpg) ![LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Image 5](https://m.media-amazon.com/images/I/51IEe+qY+pL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great value! *by J***S on March 2, 2026* Arrived on time. Added to Fiber tool chest. ### ⭐⭐⭐⭐⭐ Thanks *by V***E on September 15, 2025* Great buy ### ⭐⭐⭐⭐ It works as expected and does the job for testing without any issues. *by Y***Y on January 13, 2026* Nothing special, just a regular LC single-mode loopback adapter. ## Frequently Bought Together - Comm cable LC Fiber Optic Loopback Adapter - LC Singlemode 9/125 Tester Adapter - Blue - Networx® CAT6 Gigabit RJ45 Loopback Tester --- ## 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.pe/products/55855271-lc-fiber-optic-loopback-adapter-lc-singlemode-9-125-tester](https://www.desertcart.pe/products/55855271-lc-fiber-optic-loopback-adapter-lc-singlemode-9-125-tester) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-05-16*