---
product_id: 444606740
title: "USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play"
brand: "lornceng"
price: "R1410"
currency: ZAR
in_stock: true
reviews_count: 12
category: "Lorn Ceng"
url: https://www.desertcart.co.za/products/444606740-usb2-0-extender-over-fiber-emi-resistant-optic-up-to
store_origin: ZA
region: South Africa
---

# 20KM ultra-long fiber reach 4 USB 2.0 ports expansion Plug & Play, driver-free USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play

**Brand:** lornceng
**Price:** R1410
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your USB game—extend, connect, and conquer the distance!

## Quick Answers

- **What is this?** USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play by lornceng
- **How much does it cost?** R1410 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/444606740-usb2-0-extender-over-fiber-emi-resistant-optic-up-to)

## Best For

- lornceng enthusiasts

## Why This Product

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

## Key Features

- • **Zero Hassle Setup:** True plug-and-play with universal OS support—no drivers, no downtime, just instant connectivity.
- • **Extend Beyond Limits:** Seamlessly transmit USB signals up to 20KM over fiber for unmatched workspace flexibility.
- • **Quad-Port Powerhouse:** Connect multiple USB devices simultaneously with 4 downstream USB 2.0 ports—perfect for pro setups.
- • **EMI-Resistant Reliability:** Fiber optic transmission ensures stable, interference-free USB extension in any environment.
- • **Future-Proof Fiber Flexibility:** Hot-swappable SFP modules let you switch between single-mode and multi-mode fiber on the fly.

## Overview

The LornCeng USB2.0 Extender leverages EMI-resistant fiber optic technology to extend USB 2.0 signals up to 20KM with 4 downstream ports. It supports all major operating systems with plug-and-play ease, features hot-swappable SFP modules for flexible fiber options, and ensures stable, interference-free connections ideal for professional environments demanding long-distance USB connectivity.

## Description

desertcart.com: LornCeng USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play : Electronics

Review: Works well, CAT6 over 50 feet, for PC wireless mouse & keyboard - Works well with a CAT5/6, eight-wire cable, over about a 50 foot distance, for use as an extender to power/supply a Logitech Unifying 2.4Ghz receiver, for a Logitech wireless track ball and keyboard. The mouse and keyboard cannot "wake up" a PC in sleep mode, probably because it's powered by the USB port which is off in sleep model. In any case, it provided 90% of the purpose we bought it for. Plus, the vendor provided GREAT customer service, and even offered a full refund when we thought their unit stopped working. I'll update if I have problems over the next year.
Review: desertcart Correct, Manual wrong - To start with, I bought this USB extender because it would work over my network switches. Yes it does as advertised but the manual only show you connecting the sender and receiver together in a point to point configuration. I tried it over my network despite the directions. It works perfectly. As far as speed goes I can not tell the difference between my HD camcorder being directly connected to the USB 2.0 port on my computer vs the extender's speed. Prior to using this extender I was using the AV Access USB Extender Over Cat5e/6 196 ft system. It is a good extender but I did not like the fact I had to run separate network cables to my control room. Your PC powers up the USB sender. Just plug in your devices and windows does the rest. I am using this on windows 7 pro.

## Features

- Ultra‑Long Distance Transmission: Supports LC SFP fiber modules with up to 0–20 km single‑mode reach and 0–2 km multi‑mode reach, while also backward‑compatible with Cat5/Cat6/Cat7 cables to flexibly suit any environment
- 4 Standard USB 2.0 Ports: Receiver end expands into four downstream USB 2.0 interfaces, perfect for connecting printers, cameras, keyboards, flash drives, and more
- Plug‑&‑Play Broad Compatibility: No drivers required—works seamlessly with virtually all USB 2.0 devices, supports hot‑swapping, and enables hassle‑free deployment
- Hot‑Swappable SFP Modules: LC port uses standard SFP modules so you can swap single‑mode or multi‑mode modules on the fly for zero‑downtime maintenance and upgrades
- Universal OS Support: Fully compatible with Windows, macOS, and Linux for true driver‑free, cross‑platform USB extension

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BR7T7SCC |
| Best Sellers Rank | #1,407 in KVM Switches |
| Customer Reviews | 3.9 3.9 out of 5 stars (100) |
| Date First Available | December 28, 2022 |
| Item Weight | 3.39 pounds |
| Item model number | LC-USB-2034D-L301 |
| Manufacturer | LornCeng |
| Product Dimensions | 6.3 x 5.08 x 1.18 inches |

## Product Details

- **Brand:** LornCeng
- **Color:** Black
- **Compatible Devices:** Internet Protocol Camera, Keyboard, Mouse, Tablet, Webcam
- **Compatible Operating System Family:** Linux, Windows
- **Data Link Protocol:** USB
- **Data Transfer Rate:** 480 Megabits Per Second
- **Hardware Interface:** USB, USB 2.0
- **Item Weight:** 1.54 Kilograms
- **Manufacturer:** LornCeng

## Images

![USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play - Image 1](https://m.media-amazon.com/images/I/61zWm0Wj+qL.jpg)
![USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play - Image 2](https://m.media-amazon.com/images/I/71UcpqPFjbL.jpg)
![USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play - Image 3](https://m.media-amazon.com/images/I/61I54HN4SNL.jpg)
![USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play - Image 4](https://m.media-amazon.com/images/I/61XMDKfh4oL.jpg)
![USB2.0 Extender Over Fiber EMI-Resistant Optic up to 20KM (12.4 mi), 4 Ports USB Over Fiber Balun Transmitter and Receiver Support All Operating Systems, Plug and Play - Image 5](https://m.media-amazon.com/images/I/71DioWH7QZL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does this actually convert things from usb signals to tcp/ip or does it just use ethernet for its own signals?**
A: Hi, this USB extender kit can only transmit the USB signal over a single network cable, does not support the TCP/IP protocol.

**Q: Can this device be used over a Ethernet switch?**
A: No. This uses only end to end connection with cat 6 cable. This is not designed with protcols to work thru a network switch.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, CAT6 over 50 feet, for PC wireless mouse & keyboard
*by S***T on June 7, 2024*

Works well with a CAT5/6, eight-wire cable, over about a 50 foot distance, for use as an extender to power/supply a Logitech Unifying 2.4Ghz receiver, for a Logitech wireless track ball and keyboard. The mouse and keyboard cannot "wake up" a PC in sleep mode, probably because it's powered by the USB port which is off in sleep model. In any case, it provided 90% of the purpose we bought it for. Plus, the vendor provided GREAT customer service, and even offered a full refund when we thought their unit stopped working. I'll update if I have problems over the next year.

### ⭐⭐⭐⭐⭐ Amazon Correct, Manual wrong
*by P***T on February 6, 2026*

To start with, I bought this USB extender because it would work over my network switches. Yes it does as advertised but the manual only show you connecting the sender and receiver together in a point to point configuration. I tried it over my network despite the directions. It works perfectly. As far as speed goes I can not tell the difference between my HD camcorder being directly connected to the USB 2.0 port on my computer vs the extender's speed. Prior to using this extender I was using the AV Access USB Extender Over Cat5e/6 196 ft system. It is a good extender but I did not like the fact I had to run separate network cables to my control room. Your PC powers up the USB sender. Just plug in your devices and windows does the rest. I am using this on windows 7 pro.

### ⭐ Crashed my network.
*by R***U on September 3, 2025*

Item claims it works "over lan unlimited extension". I found that it does work over a single layer 2 switch, but once it went up to my layer 3 switch, it stopped working. Also, once the sender side is disconnected, the receiver side starts sending so much traffic it actually took down my network. Super easy to see, as soon as I unplugged the sender side, my wife immediately asked if the internet was down :D After giving up on this, I started using usbip which is free and does not crash my network.

## Frequently Bought Together

- USB 1.1 Extender Over Cat5/Cat6/Cat7 – Up to 200m (656ft) for Low-Speed Devices, 70m for High-Speed Devices, Plug & Play, No External Power, Metal Housing, Compatible with USB 2.0, Hot Swappable
- 4K@60Hz HDMI Extender Over Ethernet (Cat7/Cat6/Cat5e) up to 200ft/330ft - Ultra HD Signal, Seamless Transmission, EDID and POE Support (Transmitter & Receiver)

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**Shop now:** [https://www.desertcart.co.za/products/444606740-usb2-0-extender-over-fiber-emi-resistant-optic-up-to](https://www.desertcart.co.za/products/444606740-usb2-0-extender-over-fiber-emi-resistant-optic-up-to)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-09*