---
product_id: 378196619
title: "DTech A"
brand: "dtech"
price: "$59"
currency: NZD
in_stock: false
reviews_count: 5
category: "Dtech"
url: https://www.desertcart.nz/products/378196619-dtech
store_origin: NZ
region: New Zealand
---

# No external power needed Supports up to 4000ft range Auto baud rate up to 115.2 Kbps DTech A

**Brand:** dtech
**Price:** $59
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect smarter, not harder — the pro’s choice for seamless serial communication

## Quick Answers

- **What is this?** DTech A by dtech
- **How much does it cost?** $59 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/378196619-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

- • **Smart Speed Sync:** Automatic baud rate detection up to 115.2 Kbps ensures flawless data flow ⏱️
- • **Universal Compatibility:** Effortlessly bridges RS232 with RS485/422 devices—no jumper wires needed
- • **Compact Industrial Design:** Mini-size powerhouse built for professional setups with a sleek matte finish
- • **Long-Distance Connectivity:** Seamlessly connect devices up to 4000ft away for industrial-grade reach 📡
- • **Plug & Play Power Efficiency:** Unique serial charge pump tech means zero external power hassle ⚡

## Overview

The DTech A is a professional-grade RS232 to RS485/RS422 converter designed for reliable, long-distance serial communication. Featuring unique charge pump technology, it operates without external power and supports automatic baud rate detection up to 115.2 Kbps. With compatibility for up to 32 devices and a max range of 4000ft, it’s ideal for industrial, commercial, and office environments seeking hassle-free, high-performance serial connectivity.

## 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: Works great for RS-485 AND RS-422
Review: Working

## 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 | #52,829 in Computers ( See Top 100 in Computers ) #126 in Serial Adapters |
| Brand | DTECH |
| Color | black |
| Colour | black |
| Compatible Devices | RS232, RS485, RS422 devices |
| Compatible devices | RS232, RS485, RS422 devices |
| Connector Type | DB9 female for RS232, terminal board RS485/RS422 |
| Connector type | DB9 female for RS232, terminal board RS485/RS422 |
| Customer Reviews | 4.5 out of 5 stars 279 Reviews |
| Finish | Matte |
| Input Voltage | 9 Volts |
| Item Dimensions | 5.6 x 10.7 x 16.3 centimeters |
| Item Weight | 0.09 Kilograms |
| Item dimensions L x W x H | 5.6 x 10.7 x 16.3 centimeters |
| Manufacturer | DTech |
| Model Number | ADT-9003 |
| Number of Items | 1 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Specific Uses For Product | PC |
| Specific uses for product | PC |
| UPC | 714131652419 600649504343 |
| Unit Count | 1 Count |
| Warranty Type | 1 year warranty |

## Product Details

- **Colour:** black
- **Compatible devices:** RS232, RS485, RS422 devices
- **Connector type:** DB9 female for RS232, terminal board RS485/RS422
- **Item dimensions L x W x H:** 5.6 x 10.7 x 16.3 centimeters
- **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

### ⭐⭐⭐⭐⭐ Works great for RS-485 AND RS-422
*by M***. on 4 April 2021*



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



### ⭐⭐⭐⭐⭐ RS 232 TO RS 422
*by I***N on 18 September 2024*



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**Shop now:** [https://www.desertcart.nz/products/378196619-dtech](https://www.desertcart.nz/products/378196619-dtech)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-14*