---
product_id: 75857510
title: "DTech A"
brand: "dtech"
price: "$428"
currency: MXN
in_stock: true
reviews_count: 5
category: "Dtech"
url: https://www.desertcart.mx/products/75857510-dtech
store_origin: MX
region: Mexico
---

# 115.2 Kbps max baud rate 4000 ft (1200 m) max connection distance No external power needed DTech A

**Brand:** dtech
**Price:** $428
**Availability:** ✅ In Stock

## Summary

> ⚡ Connect smarter, reach farther, power freer — the pro’s choice in serial conversion!

## Quick Answers

- **What is this?** DTech A by dtech
- **How much does it cost?** $428 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/75857510-dtech)

## Best For

- dtech enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Robust:** Mini-size design fits anywhere, built for reliable, professional-grade performance.
- • **Ultra-Long Reach:** Supports data transmission up to 4000 feet, perfect for sprawling industrial setups.
- • **Power-Free Innovation:** Unique charge pump tech powers the converter—no external supply required.
- • **Plug & Play Simplicity:** Auto baud rate and mode detection means zero configuration headaches.
- • **Seamless Serial Conversion:** Effortlessly bridge RS232 with RS485/422 devices for flawless communication.

## Overview

The DTech A is a professional-grade RS232 to RS485/422 converter designed for seamless, long-distance serial communication up to 4000 feet. Featuring unique charge pump technology, it operates without external power and supports baud rates up to 115.2 Kbps with automatic signal detection. Compact and reliable, it’s ideal for industrial, commercial, and office environments requiring robust serial interface conversion.

## Description

One-stop solution for all your connection needs In order to facilitate the allocation of a different standard computer serial interface, external devices or between the intelligence apparatus for remote data communication, the need for standards conversion of the serial interface. Convert an RS232 data signal to RS485 or RS422 The DTECH Industrial RS232 to RS-422/485 Serial Converter is a bi-directional adapter that lets you adapt an RS232 data signal to either RS485 (2 or 4-wire) or RS422 and vice-versa, with support for baud rates up to 115.2 Kbps. The adapter supports auto baud rate detection as well as RS-422 and RS485 mode detection, and supports connection distances of up to 4000ft (1200m). It is suitable for most applications, including industrial, commercial and any general office computer device. Specific Compatible with RS232C,RS485,RS422 TIA/EIA standard Baud rate: 300bps to 115.2Kbps Automatic send / receive data, without external flow control signals. Zero delay automatic transmission Supports multiple terminals up to 32 RS-485 or RS-422 devices Transmission distance: up to 4000 Feet (1200 meters) for RS-485/422 end Power supply: Unique serial charge pump drive technology, no external power supply. Working modes: Asynchronous half-duplex(RS485) or asynchronous full duplex(RS422),no need jumper wire settings. Transmission media of RS232 Data Converter: twisted pair or shielded twisted pair ( STP ). Mini-Size:64mmX33mmX17mm Original Packing Included 1 X DB9 Female RS232 to RS485 RS422 Communication Converter 1 x Terminal Board

Review: Unlike another one I bought that claimed to do both 2-wire RS-485 AND 4-wire RS-422, this one actually does both standards very well. Connects every time and works like a champ. Highly recommend.
Review: Working fine. No issue.

## Features

- Pro grade RS232 to RS485 / RS422 converter. It easily lets you connect any RS485 or RS422 device directly to COM port
- Best solution for the communication between serial port and RS485 or RS422 device
- Unique serial charge pump drive technology, no external power supply, the real three-wire communication (TXD,RXD,GND). No need serial port initialization
- Supports baud rates up to 115.2 Kbps; Automatic sense serial signal rate
- Supports a maximum connection distance of 4000ft (1200m)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0196AO1IG |
| Best Sellers Rank | 201,814 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 500 in Serial Adapters |
| Brand | DTECH |
| Colour | black |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (279) |
| Date First Available | 1 Jan. 2024 |
| Guaranteed software updates until | unknown |
| Item model number | ADT-9003 |
| Package Dimensions L x W x H | 11.5 x 8.4 x 2.7 centimetres |
| Package Weight | 0.07 Kilograms |
| Part number | 8541672854 |
| Product Dimensions L x W x H | 5.6 x 10.7 x 16.3 centimetres |
| Size | Mini-Size |

## Product Details

- **Colour:** black
- **Compatible devices:** serial devices
- **Connector type:** ['DB9 Female']
- **Item dimensions L x W x H:** 5.6 x 10.7 x 16.3 centimetres
- **Specific uses for product:** PC

## Images

![DTech A - Image 1](https://m.media-amazon.com/images/I/51kC8JThzKL.jpg)
![DTech A - Image 2](https://m.media-amazon.com/images/I/51UdWQMB6ML.jpg)
![DTech A - Image 3](https://m.media-amazon.com/images/I/51e+9fSMarL.jpg)
![DTech A - Image 4](https://m.media-amazon.com/images/I/61k+o2kgtkL.jpg)
![DTech A - Image 5](https://m.media-amazon.com/images/I/71z4zdognfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***. on 4 April 2021*

Unlike another one I bought that claimed to do both 2-wire RS-485 AND 4-wire RS-422, this one actually does both standards very well. Connects every time and works like a champ. Highly recommend.

### ⭐⭐⭐⭐⭐ Review
*by S***U on 7 July 2025*

Working fine. No issue.

### ⭐⭐⭐⭐⭐ Review
*by I***N on 18 September 2024*

They are very easy to connect. Make sure you test the connection on the bench before installation

## Frequently Bought Together

- DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size
- DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet
- DTECH RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge

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**Shop now:** [https://www.desertcart.mx/products/75857510-dtech](https://www.desertcart.mx/products/75857510-dtech)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-21*