---
product_id: 94284448
title: "DS9490R USB to 1-Wire (RJ11/USB) Adapter"
brand: "dallas / maxim"
price: "HK$1"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/94284448-ds9490r-usb-to-1-wire-rj11-usb-adapter
store_origin: HK
region: Hong Kong
---

# No external power needed Universal USB compatibility Cross-platform support DS9490R USB to 1-Wire (RJ11/USB) Adapter

**Brand:** dallas / maxim
**Price:** HK$1
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect smarter, not harder — your 1-wire gateway to seamless control!

## Quick Answers

- **What is this?** DS9490R USB to 1-Wire (RJ11/USB) Adapter by dallas / maxim
- **How much does it cost?** HK$1 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/94284448-ds9490r-usb-to-1-wire-rj11-usb-adapter)

## Best For

- dallas / maxim enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight & Compact:** At just 10g, it’s the perfect portable tool for on-the-go professionals.
- • **Plug & Play USB Power:** Draws power directly from any USB port—no extra batteries or adapters required.
- • **Cross-Platform Versatility:** Works flawlessly on Windows, Linux, and Raspberry Pi environments.
- • **Seamless 1-Wire Integration:** Compatible with all 1-wire components for effortless device management.
- • **Trusted Dallas Semiconductor Chipset:** Built on the reliable DS2490 chipset for industry-grade performance.

## Overview

The DS9490R USB to 1-Wire Adapter is a compact, plug-and-play device powered solely by USB, enabling effortless control of all 1-wire components across Windows, Linux, and Raspberry Pi platforms. Built on the trusted DS2490 chipset, it offers reliable, cross-platform compatibility without the need for external power.

## Description

The DS9490R is a USB adapter that enables 1-wire bus control. The DS9490R is based on the DS2490 USB to 1-wire chipset in the Dallas semiconductor and therefore contains all of its features. Compatible with the TMEX Dallas (Windows only) drivers. Compatible with Linux using the OWFS software, for example. You will be able to manage all types of 1-wire components thanks to this module. This adapter can be used on a Raspberry Pi card with Domoticz (it is recognised automatically).

## Features

- Works on any PC with a USB port.
- Compatible with all 1-wire components.
- No external power required other than the USB port.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y4CRMLS |
| Batteries Required? | No |
| Batteries included? | No |
| Date First Available | 13 April 2017 |
| Item Weight | 10 g |
| Manufacturer | Dallas / Maxim |
| Manufacturer reference | 14 |
| Part Number | 14 |
| Style | Modern |

## Images

![DS9490R USB to 1-Wire (RJ11/USB) Adapter - Image 1](https://m.media-amazon.com/images/I/41sM7UeUzbL.jpg)

---

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**Shop now:** [https://www.desertcart.hk/products/94284448-ds9490r-usb-to-1-wire-rj11-usb-adapter](https://www.desertcart.hk/products/94284448-ds9490r-usb-to-1-wire-rj11-usb-adapter)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*