---
product_id: 3865726
title: "FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter"
brand: "cablemax"
price: "€ 2.12"
currency: EUR
in_stock: false
reviews_count: 3
url: https://www.desertcart.it/products/3865726-ftdi-usb-to-rs-232-rs-422-rs-485-pro
store_origin: IT
region: Italy
---

# Up to 3M Baud ultra-fast data rates Software-configurable interface settings 15kV ESD protection for ultimate durability FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter

**Brand:** cablemax
**Price:** € 2.12
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Future-proof your serial connections with pro-grade speed and protection!

## Quick Answers

- **What is this?** FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter by cablemax
- **How much does it cost?** € 2.12 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/3865726-ftdi-usb-to-rs-232-rs-422-rs-485-pro)

## Best For

- cablemax enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Sleek black design weighing just 3.36 ounces fits perfectly into any professional setup.
- • **Rock-Solid Protection:** Built-in 15kV electrostatic discharge shielding ensures your device stays safe in any environment.
- • **Plug & Play Flexibility:** Driver-managed configuration means zero hassle when upgrading your computer or switching devices.
- • **Blazing Fast Data Transfer:** Supports up to 230 kbps (RS-232) and 3M Baud (RS-422/485) for seamless high-speed communication.
- • **Universal Serial Compatibility:** Effortlessly connects DB-9 serial devices to USB, bridging legacy tech with modern systems.

## Overview

The FTDI USB to RS-232/422/485 Pro Grade Adapter by Cablemax offers ultra-fast data rates up to 3M Baud, robust 15kV ESD protection, and fully software-configurable interface settings. Designed for seamless USB to DB-9 serial device connectivity, it ensures hassle-free upgrades and reliable performance in professional environments.

## Description

Full description not available

## Features

- Connects your DB-9 serial communication device to USB easily.
- All configuration and electrical interface selections are handled through the driver.
- Handles high data rates up to 230 kbps (RS-232) ~ 3 M Baud (RS-422 or RS-485).
- Incorporates up to 15Kv in ESD (electro-static discharge) protection.
- Maintains electrical interface settings through software - Allows computers to be upgraded without reconfiguring the device.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | CABLEMAX |
| Item model number | CM-RSDB9-PRO |
| Item Weight | 3.36 ounces |
| Package Dimensions | 4.75 x 3.75 x 1.25 inches |
| Color | Black |
| Manufacturer | Cablemax |
| ASIN | B00IS6Y0EU |
| Is Discontinued By Manufacturer | No |
| Date First Available | March 4, 2014 |

## Product Details

- **Compatible Devices:** DB-9 Serial Device
- **Specific Uses For Product:** personal
- **Connector Type:** Serial Adapter
- **Color:** Black
- **Brand:** CABLEMAX

## Images

![FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter - Image 1](https://m.media-amazon.com/images/I/61oNfmeVyGL.jpg)
![FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter - Image 2](https://m.media-amazon.com/images/I/61HitNen9kL.jpg)
![FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter - Image 3](https://m.media-amazon.com/images/I/616k19+8AML.jpg)
![FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter - Image 4](https://m.media-amazon.com/images/I/81f50InYpRL.jpg)
![FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter - Image 5](https://m.media-amazon.com/images/I/81hlvFuho8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Review for the Pro Grade FTDI USB to RS-232 / RS-422 / RS-485 Adapter Selectable via Software item #CM-RSDB9-PRO
  

*by R***T on Reviewed in the United States on April 11, 2014*

I chose this adapter because it seemed like it fulfill the need I had for a serial adapter that I could run from a USB port on my laptop.First Visual Observations:At first you might think this serial adapter was a toy, it’s not. The components are held within a tough, black, hard plastic casing with screw-locks to secure the cable connection between the male to female RS-232 DB-9 connectors, or whatever method is being used for the serial application.Packaging and Contents:+ USB 2.0 to Serial adapter+ USB Cable+ Disk with drivers and manualAll contents were shipped in a small box with the adapter itself wrapped in an anti-static bag; the cable was in a separate sealed package with the driver disk below them.Setup and Operation:I had received this small and light weight USB 2.0 to Serial Adapter and put it right to work with an older Cisco 2621 Modular Access Router I was using for terminal work.As I have said this handy little adapter isn’t a toy. I am running Windows Vista Ultimate which initially doesn’t support terminal applications, that feature was unfortunately removed from Windows. To use the adapter for my application I had to download a terminal emulation program called Putty.This was an easy process for me to get going once the terminal emulation software and driver for the adapter was installed. I was able to configure which COM port I wanted to use, in my case I chose COM 6 as my communication port.+ 1. Use the provided USB cable and connected it to the serial adapter.+ 2. Allow the installation of the driver for the device, in my case I had to used the provided driver disk +3. Check for the new installation in your device manager, your new serial adapter will be listed under the COM port section in the device list. You can chose your COM port via your software.+ 4. Connect your terminal to the serial adapter.When using the serial adapter I noticed it has a series of LED indicators on its side, these included Power, TxD, and RxD, all functioned properly, the power LED activated once the USB cable was plugged in and the serial adapter connected to it. The TxD LED activated once the connection was made to the Cisco Router. The signal once connected as far as I could tell was nearly instant; I saw very little if any delay between the terminal window and the device output.My Summation & Recommendation:I found no cons in using this device even in a system that had chosen to remove the application I wanted to use it with.I liked this USB to Serial Adapter because it was easy to work with and move out of the way if needed. For its size, it really had almost no weight to it and the physical size was smaller in comparison to a wireless mouse you would use with your computer and obviously thinner. The LED’s were visually bright and noticeable.I would certainly recommend using this adapter if you need to add a serial port to your PC or Laptop, particularly when you are using it for a serial application that requires not only RS232 specifications but RS422 or RS485 signals as well. The USB to Serial Adapter is self-powered via the USB port.Special note:This device was purchased/received from Amazon through the manufacturer’s Amazon store. The observations, usage, and opinions are of my own design and not solicited in any way.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice product
  

*by S***N on Reviewed in the United States on March 11, 2023*

Works great. Driver is automately installed in Windows 10. The product can configured using the RS-232_422_485-AP in the shipped CD. When this converter is plugged on the computer, the Com Port No. can be detected by RS-232_422_485-AP. No need to check it in the Windows Device Manager.Only one comment on the Manual. Refer to the attached screenshot. It says "Click Prog EEPROM" in this step. Actuallly, there is no 'Prog EEPROM' button. Instead, you need to click "START" button to program the EEPROM of this converter. After then, you can verify the status by clicking the "Read Status" button. If it returns the protocal you wanted, you can close this RS-232_422_485-AP and do you work.Hardware: it would be perfect if the joint of the case were smaller.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Prompt service
  

*by J***E on Reviewed in the United States on February 27, 2020*

Replacement and refund handled promptly and cheerfully.

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---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-04*