---
product_id: 39596990
title: "RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter"
brand: "lfhukeji"
price: "€ 15.76"
currency: EUR
in_stock: true
reviews_count: 5
category: "Lfhukeji"
url: https://www.desertcart.hr/products/39596990-rj45-to-rs232-db9-9-pin-serial-port-female-to
store_origin: HR
region: Croatia
---

# Supports up to 65.6FT cable extension Dual-way RS232 & RJ45 data transmission Double-shielded for EMI & RFI noise protection RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter

**Brand:** lfhukeji
**Price:** € 15.76
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect the past to the future—extend your network with confidence!

## Quick Answers

- **What is this?** RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter by lfhukeji
- **How much does it cost?** € 15.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/39596990-rj45-to-rs232-db9-9-pin-serial-port-female-to)

## Best For

- lfhukeji enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Works flawlessly with most routers, switches, firewalls, and legacy gear—future-proof your network infrastructure today.
- • **Built to Last, Built for Ease:** Molded strain relief and grip treads guarantee durable, secure connections with finger-tightened screws for hassle-free setup.
- • **Premium Noise-Resistant Design:** Nickel-plated, oxygen-free copper connectors with double shielding minimize crosstalk and electromagnetic interference.
- • **Extended Reach, Zero Signal Loss:** Supports cable lengths up to 65.6 feet, ensuring stable, long-distance data transmission without degradation.
- • **Seamless Serial-to-Network Bridge:** Effortlessly connect legacy RS232 devices to modern RJ45 Ethernet ports for ultimate compatibility.

## Overview

The LFHUKEJI RJ45 to RS232 DB9 female adapter enables bi-directional transparent data transmission between serial RS232 devices and RJ45 Ethernet ports. Engineered with premium materials including nickel-plated, oxygen-free copper connectors and double shielding, it supports cable runs up to 65.6 feet while minimizing interference. Compatible with a wide range of routers and legacy equipment, this durable adapter features molded strain relief and secure finger-tightened screws for reliable, professional-grade connectivity.

## Description

----------ON SALE----------Note:This product is only an adapter for exptending, not a console adapter. The LFHUKEJI rollover DB9 RS232 to RJ45 adapter will help you to connect your device to another device through the console port. It works with gear both new and old.This adapter is identical to the one that ships with switches, firewalls, routers, wireless devices and more. It works with gear both new and old. Most folksuse the standard Windows Hyperterminal or some other terminal emulation software to access the IOS through the console port. If you have a newer laptop, it may not have the 9-pin serial port, in which case you should purchase the USB Console adapter Kit found in this same category. The main features: The DB9 signal is transmitted over the network cable Has completed the global wiring, can not use the DB9 line to be modified Engineering decoration DB9 applies to all kinds of CNC,PAD,PC Attention:Recently there are many users will not set the problem, please use Google before you set the tutorial Range(max): 20meters/65.6Ft Note1：The role of this adapter is only to transmit data, can not be used as a switch configurationNote2：If you have any questions about debugging, please contact us and we can support the provision of technical services.

Review: Five Stars - works great!
Review: Five Stars - Great

## Features

- DB9 (RS232) Female to RJ45 female adapter for TCP/IP network interface with the doual-way conversion, with the serial port network function, support serial data and network data bi-directional transparent transmission
- Connect the equipment serial port to the RJ45 port on routers,Support maximum distance 65.6FT
- Compatible with most routers on the market, and you need to buy a pair for sending and receiving
- Nick-plated and Oxygen-free copper transmission port on the port minimize crosstalk, suppress noise, and protect against electromagnetic interference (EMI) and radio frequency interference (RFI),Premium adapter engineered with molded strain relief connectors for durability, grip treads for easy plugging and unplugging, and finger-tightened screws for a secure connection
- Double-shielded standard to ensure that signal transmission without interference

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MTQGNW1 |
| Best Sellers Rank | #373 in Serial Adapters |
| Brand | LFHUKEJI |
| Color | Black |
| Compatible Devices | Laptop |
| Connector Type | RJ45 |
| Customer Reviews | 4.2 out of 5 stars 26 Reviews |
| Finish | Transparent |
| Finish Type | Transparent |
| Item Dimensions | 1.9 x 1.29 x 0.83 inches |
| Item Weight | 0.04 Pounds |
| Item dimensions L x W x H | 1.9 x 1.29 x 0.83 inches |
| Manufacturer | GUSHU Ltd. |
| Mfr Part Number | RJ45-1 |
| Model Number | RJ45 to RS232 female |
| Number of Items | 1 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 713262099506 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |

## Product Details

- **Brand:** LFHUKEJI
- **Color:** Black
- **Compatible Devices:** Laptop
- **Connector Type:** RJ45
- **Item dimensions L x W x H:** 1.9 x 1.29 x 0.83 inches

## Images

![RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter - Image 1](https://m.media-amazon.com/images/I/5157J1-kf6L.jpg)
![RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter - Image 2](https://m.media-amazon.com/images/I/51-U9td8KNL.jpg)
![RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter - Image 3](https://m.media-amazon.com/images/I/51cxoc2ZvBL.jpg)
![RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter - Image 4](https://m.media-amazon.com/images/I/51LgIqS9cJL.jpg)
![RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter - Image 5](https://m.media-amazon.com/images/I/612jNdZlLlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Five Stars
*by J***H on September 17, 2017*

works great!

### ⭐⭐⭐⭐⭐ Five Stars
*by E***S on November 20, 2017*

Great

### ⭐ Adapter does not work...save your time, order from somewhere else
*by C***Y on March 15, 2018*

The adapter arrived a day early which I was super excited about but unfortunately it does not work. I attempted to use the adapter with a Cat5e cable to connect to the console ports of my routers and switches in my home lab but I received no connection using PuTTY. I tried multiple Ethernet cables that I know work in case it was a wire issue and also tested the connection with my Cisco console cable (which worked). I was really looking forward to this adapter as this would allow me to access the console port on all my devices without having switch the console cable every time (just switch the cable plugged into the adapter), very disappointing.

## Frequently Bought Together

- LFHUKEJI RJ45 to RS232,DB9 9-Pin Serial Port Female to RJ45 Female Cat5e/6 Ethernet LAN Extend Adapter
- DTECH DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices
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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-14*