---
product_id: 246107405
title: "CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes."
brand: "cqrobot"
price: "A$48"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/246107405-cqrobot-3-9-ft-usb-to-rs422-or-rs485-serial
store_origin: AU
region: Australia
---

# 600W Surge Protection 15KV ESD Isolation Supports 32 Nodes CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes.

**Brand:** cqrobot
**Price:** A$48
**Availability:** ✅ In Stock

## Summary

> 🔌 Connect with Confidence!

## Quick Answers

- **What is this?** CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. by cqrobot
- **How much does it cost?** A$48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/246107405-cqrobot-3-9-ft-usb-to-rs422-or-rs485-serial)

## Best For

- cqrobot enthusiasts

## Why This Product

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

## Key Features

- • **Automatic Control:** Zero-delay transceiver for smooth data flow without manual setup.
- • **Robust Protection:** 600W anti-surge and 15KV ESD isolation keep your equipment safe.
- • **Seamless Connectivity:** Effortlessly connect RS422/RS485 devices to your USB port.
- • **Conflict-Free Operation:** No IRQ or COM port conflicts for hassle-free installation.
- • **Universal Compatibility:** Works with Windows, Mac, and Linux—perfect for any setup.

## Overview

The CQRobot USB to RS422/RS485 Serial Port Converter is designed for seamless integration in industrial environments, featuring a high-performance FTDI FT232 chip, robust surge and ESD protection, and automatic data flow control, making it the ideal choice for connecting multiple devices without the hassle of conflicts.

## Description

Full description not available

## Features

- The USB to RS422 or RS485 converter has a built-in high-performance FTDI chipset FT232 chip, allowing you to quickly connect RS422 or RS485 devices to the USB port of your laptop.
- The serial port converter is very suitable for industrial environments. It provides 600 watt surge protection and 15KV ESD isolation protection on all signal pins to protect expensive and usually sensitive control equipment from electrical damage.
- The converter has a built-in zero-delay automatic transceiver, and the unique I/O circuit automatically controls the data flow without any handshake signal. (Such as RTS, DTR, etc.) and jumper sets to achieve full-duplex, half-duplex mode conversion, support 32 node devices.
- There are no IRQ and COM port conflicts, since the port do not require any additional IRQ, DMA, memory as resources on the system; RS422 for Half duplex and RS485 for Full duplex communication.
- Comply with FCC, CE, RoHs standards, With power, TX and RX LED indicators to check connection and communication activity, support Windows 10, 8, 8.1, 7, Vista, XP, Linux and Mac, etc.

## Product Details

- **Compatible devices:** Laptop
- **Specific uses for product:** Industrial Equipment, Laptop
- **Connector type:** usb
- **Colour:** Bright Black
- **Brand:** CQRobot

## Images

![CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. - Image 1](https://m.media-amazon.com/images/I/715dMz+zEsL.jpg)
![CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. - Image 2](https://m.media-amazon.com/images/I/81evsLfoTTS.jpg)
![CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. - Image 3](https://m.media-amazon.com/images/I/71vClY7fWHL.jpg)
![CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. - Image 4](https://m.media-amazon.com/images/I/81yieB9LKdS.jpg)
![CQRobot 3.9 ft USB to RS422 or RS485 Serial Port Converter Adapters Cable with FTDI FT232 Chip, for Windows 10 8 7 XP Mac. 600W Anti-surge, 15KV-ESD, I/O Automatic Control, Support 32 Nodes. - Image 5](https://m.media-amazon.com/images/I/71aSvyioc+L.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality cable!
*by T***N on 10 August 2021*

Materials:Rubber cable.Gold plated pins.Impressions:Built-in high-performance FTDI chipset FT232 chip, allowing you to quickly connect RS422 or RS485 devices to the USB port of your laptop.Built in 600 watt surge protection and 15KV ESD isolation.Built-in zero-delay automatic transceiver, and the unique I/O circuitno IRQ and COM port conflictsThis adapter allows a normal PC to be connected to an RS485 / RS422 line. Be it to listen to / record the communication or to issue commands yourself. The adapter comes with a 1 meter long USB cable and has a D-Sub9 output. If you want to connect the adapter directly to an existing line, you can do this using the included adapter, which allows connection to a half-duplex or full-duplex connection.The included driver CD with the necessary FTDI driver for different systems (Windows, Mac, Linux etc.) was not necessary for Windows systems, because newer Windows systems (Windows 10 for me) install the necessary driver independently.The device consists of a normal FTDI FT232RL USB-UART chip with a downstream RS485 transceiver. The adapter is connected to the USB interface. The FTDI chip then simulates a serial interface and sets up a COM port on the PC. A normal terminal program is sufficient for communication. Since the housing could not be opened, a precise inspection of the internal wiring was unfortunately not possible, and galvanic isolation is definitely not carried out.However, the adapter itself works perfectly and by using branded components, driver problems are not to be expected in the future either. So there is nothing to complain about!

### ⭐⭐⭐⭐⭐ Very reliable and effective USB to RS422 / RS485 protocol adapter and driver
*by A***S on 17 June 2021*

Upon waiting for a project to finish, i then had the ability to network the old relaible calibrated test gear in one of the robotic and sensor labs which was all serial configured and controlled via RS422 / RS485. I was so impressed with this adapter. It was easy to install on both the Linux (Cinamon) and Windows (10). The small CD has drivers for Mac OS, Android, and all the versions of windows back to Windows CE and 98!!!! It goes like a rocket if ya can get it to 921600bps to a range of 300m of twisted cable or slow speeds suchas 9600bps out to a massive 1.2Km. I found if you are driving a network of instruments (point to multi-point mode) it is best to put a 120R resistor 1/4W metal in the last multipoint device between T+ and T- and also between R+ and R- leads to prevent matching and cross talk error injection. The protection this adapter has is superb at 15KV for ESD 600W surge. This was easy to use and worked without any problems at all with LabView and our other lab instrumentation software of that equipments' supplier. We will definately buy more so the other 11 labs can be kitted out the same using this adapter. Highly recommend the product, Andrew

### ⭐⭐⭐⭐ Fully connectable
*by M***. on 24 February 2021*

This product arrived safe and well packaged.This simple little cable has such a HUGE use... it can be used to connect any USB device to a older styleI highly recommend this product.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-03*