---
product_id: 151651022
title: "DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC"
brand: "dsd tech"
price: "KSh5081"
currency: KES
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.ke/products/151651022-dsd-tech-sh-u09c3-isolated-usb-to-ttl-adapter-featuring
store_origin: KE
region: Kenya
---

# FTDI FT232RL chip for stable 3Mbps speed LED indicators for TX, RX, Power 1500V isolation voltage DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC

**Brand:** dsd tech
**Price:** KSh5081
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your ports, power your projects with confidence!

## Quick Answers

- **What is this?** DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC by dsd tech
- **How much does it cost?** KSh5081 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/151651022-dsd-tech-sh-u09c3-isolated-usb-to-ttl-adapter-featuring)

## Best For

- dsd tech enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Stability:** Powered by FTDI FT232RL chip ensuring seamless 3Mbps data transfer
- • **Confidence with Support:** 1-year warranty plus rapid-response tech support within 24 hours
- • **Dual Voltage Flexibility:** Switch effortlessly between 3.3V and 5V TTL logic levels with jumper control
- • **Visual Debugging Made Easy:** Integrated LED indicators keep you in the loop on TX, RX, and power status
- • **Rock-Solid USB Port Protection:** Industrial-grade 1500V isolation shields your PC from shorts & shocks

## Overview

The DSD TECH SH-U09C3 Isolated USB to TTL Adapter features industrial-grade 1500V isolation using ADI's iCoupler technology to safeguard your computer’s USB port from electrical damage. Equipped with the reliable FTDI FT232RL chip, it supports up to 3Mbps data transfer speeds and offers dual 3.3V/5V TTL logic compatibility. LED indicators provide real-time TX, RX, and power status, while a protective case ensures safe handling. Compatible across major OS platforms, it comes with a 1-year warranty and dedicated technical support, making it an essential tool for professional debugging and development.

## Description

This FT232 USB to TTL adapter can isolate the signal and power, it comes with two isolation chips, even if your external circuit is short-circuited or high voltage is applied, it will not damage your USB port, thus protecting your computer, this USB to TTL UART isolation module can handle all kinds of complex and harsh conditions.  Important Note: This isolated USB to TTL adapter does not have 2 pins for RTS and CTS. If you need to use these 2 pins, don't buy this adapter.  Specification: Model: SH-U09C3 Main chip: FTDI FT232RL Isolation voltage: 1500VDC voltage isolation, with continuous short circuit protection Pin Definitions: RXD, TXD, GND, VCC, P30 (P30 for STC MCUs only) TTL level: 3.3V or 5V USB interface: 2.0 Maximum speed: 3Mbps  About Indicator LEDs: PWM LED: Power indicator RXD LED: The data transfer indicator flashes when there is data in the USB port. TXD LED: The data reception indicator flashes when the USB port receives data.  List of supported systems 1，Windows XP，7,8,10 2. Ubuntu 11.10, kernel 3.0.0-19 or above 3, Mac OS X 10.3 to 10.8 (32-bit and 64-bit) 4. Mac OS X 10.9 and above (64-bit) 5. Windows CE 4.2-5.2, 6.0/7.0 and Windows CE 2013 You can download the driver directly from FTDI's website  Works with software HyperTerminal, TeraTerm, WinDBG, all open source serial software on Linux, etc.  Packing List: 1 x Isolated USB to TTL Adapter 1 x User Manual 1 x 4 PIN DuPont cable  Guarantee: DSD TECH offers a 1-year warranty and lifetime technical support for this isolated USB to TTL adapter. If you encounter any problems, please contact us and we will solve your problem within 24 hours.  Important This product uses FTDI FT232RL chips by default, and due to the shortage of chips, some production batches use FTDI FT232RNL model chips. Please

## Features

- Industrial-grade USB isolation module: ADI's iCoupler signal isolation technology is used to fully protect the computer's USB port from external short-circuit, shock and other damage.
- The main chip is FT232RL from FTDI ,High stability. LED indicator for TX,RX,Power,It is very useful when you are debugging or downloading.
- Protective case: We have installed a protective case for this isolated USB to TTL Converter, which prevents your hands from directly touching the PCB and IC.
- Both 3.3V and 5V Logic TTL are supported. You can switch by jumper.
- Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this Isolated USB to TTL Adapter.All questions will be answered within 1 working day.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Item Weight | 0.3 Ounces |
| Package Quantity | 1 |
| Item Dimensions | 1.95 x 0.45 x 0.1 inches |
| Color | Multicoloured |
| Warranty Type | 1-year warranty |
| Input Voltage | 5 Volts |
| Connector Type Used on Cable | Serial Adapter |
| Number of Ports | 2 |
| Compatible Devices | Windows XP,7,8,10, Ubuntu 11.10, Mac OS X 10.3 to 10.13, Windows CE 4.2-5.2 6.0/7.0 and Windows CE 2013 |

## Product Details

- **Compatible Devices:** PC, Laptops
- **Specific Uses For Product:** PC
- **Connector Type:** usb
- **Color:** Multicoloured
- **Item dimensions L x W x H:** 1.95 x 0.45 x 0.1 inches

## Images

![DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - Image 1](https://m.media-amazon.com/images/I/71Bh4viELVL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the converter source its power from the usb or the vcc? if from the usb and the vcc is an "output", does removing the jumper disconnect vcc (0v)?**
A: In the case of USB power supply, when the jumper at 5V VCC 3V3 is removed, the following VCC will not have an output voltage.

**Q: Does it the drive and the module work for macbook ? because after doing research i saw that macbooks usually face problem while interacting with ftdi.**
A: We confirm that this ftdi  adapter work on macbook  . Try it and you will be pleasantly surprised

**Q: how to install the driver?**
A: Please use the following link to download driver:
 
https://www.ftdichip.com/FTDrivers.htm

or google "ftdi ft232"

**Q: What is the maximum baud rate that this supports?**
A: Build-in FTDI FT232RL Chip, max speed is to 3Mb/s  . After testing, we found that data can be transmitted stably below 115200 baud rate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product.
*by G***S on August 21, 2025*

Great Product. Easy to use.Be carful to have GND connected when using the device, I had a ground pin disconnect on my application side and killed 3 units when I plugged them into the computer.

### ⭐⭐⭐⭐⭐ Works fine.
*by R***R on October 26, 2024*

This device worked perfectly. I wanted the serial data levels to be powered externally and was a bit confused about doing that although I found in an answer that you can remove the 3.5/5 jumper altogether. That did it.

### ⭐⭐⭐⭐⭐ Works like a charm
*by A***X on November 12, 2020*

I needed a serial interface for a commercial prototype that offered total isolation. I'm familiar with the FT232RL and prefer it over other USB-to-serial chips because of broader platform compatibility, especially with newer versions of Windows. The DSD unit worked flawlessly out of the box, connected with my Windows 10 system and my prototype and has been running experiments all day without a hitch.I had to take isolation a step further by removing the DC-to-DC converter (the big black rectangle) and supply 5v power from the prototype. The nice acrylic case the DSD unit came in was easy to disassemble. A little prying with a jeweler's screwdriver and voila... I had access to the board to remove the converter. Afterwards it snapped back together without a fuss.This is a clean, well-designed unit that does what it's supposed to do. Highly recommended.

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-13*