---
product_id: 253816835
title: "DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming"
brand: "dsd tech"
price: "VT4239"
currency: VUV
in_stock: true
reviews_count: 8
category: "Dsd Tech"
url: https://www.desertcart.vu/products/253816835-dsd-tech-sh-u09c2-usb-to-ttl-adapter-built-in
store_origin: VU
region: Vanuatu
---

# 3Mbps max speed Switchable 1.8V/3.3V/5V logic levels Protective transparent casing DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming

**Brand:** dsd tech
**Price:** VT4239
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your debugging game with the ultimate USB-to-TTL adapter!

## Quick Answers

- **What is this?** DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming by dsd tech
- **How much does it cost?** VT4239 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/253816835-dsd-tech-sh-u09c2-usb-to-ttl-adapter-built-in)

## 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

- • **Durable & Safe Design:** Encased in a transparent shell that guards against static interference and accidental shorts.
- • **Robust FTDI FT232RL Core:** Powered by the original FTDI chip ensuring rock-solid, reliable USB-to-TTL communication.
- • **Crystal-Clear Diagnostics:** Onboard Power, TX, and RX LEDs let you instantly monitor data flow and troubleshoot like a pro.
- • **Cross-Platform Compatibility:** Effortlessly integrates with Windows, Linux, and Mac OS for versatile development environments.
- • **Universal Logic Voltage Flexibility:** Seamlessly toggle between 1.8V, 3.3V, and 5V TTL levels to match any project’s needs.

## Overview

The DSD TECH SH-U09C2 USB to TTL Adapter features the original FTDI FT232RL chip, supporting 1.8V, 3.3V, and 5V logic levels switchable via jumper. It includes a protective transparent case to prevent static and shorts, offers up to 3Mbps data transfer speed, and is compatible with Windows, Linux, and Mac OS. Ideal for programmers and hardware engineers, it comes with onboard LEDs for real-time data monitoring and a 12-month warranty with responsive support.

## Description

Ideal for programmers, hardware engineers and DIY User. Compared to other USB to TTL UART adapters, this adapter not only supports 3.3V and 5V logic levels, but also adds support for 1.8V logic levels. At the same time it is equipped with a protective plastic case, this protective plastic case can effectively prevent static interference and various short circuits. Specification: Model: SH-U09C2 Main chip: FTDI FT232RL Pin Definition: CTS,RTS,RXD,TXD,GND,VCC Output VCC: 1.8V/3.3V/5V TTL Level: 1.8V/3.3V/5V USB interface: 2.0 The maximum speed: 3Mbps About indicator LED: PWM LED:Power Indicator RXD LED:The data transmission indicator flashes when there is data from the USB port. TXD LED:The data receiving 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 3,Mac OS X 10.3 to 10.8 (32 &64 bit) 4,Mac OS X 10.9 and above(64 bit) You can download the driver directly from FTDI's website Packing list: 1 X FTDI FT232RL USB to TTL Adapter with a plastic shell 1 X User Manual 1 X 4 PIN DuPont cable WARRANTY: DSD TECH offers a 1-year warranty and lifetime technical support for this USB-to-TTL adapter。If you meet any question, Please contact us, We will fix your issue within 24 hours.

Review: Very good product - Good build quality...and excellent in working....
Review: Super - GOOD! - It's with real FT232, working tested on Win 10/64bit. Fantastic, as you can choose the voltage 1V8-3V3-5V by choosing onboard jumper position. One year ago I had to telnet into one Dahua IP camera and it was quite difficult to find at the moment one USB to Serial TTL (3V3) interface. Very nice built, in transparent case so you can see onboard LEDs (Power/Tx/Rx) and quickly troubleshoot communication issues. The converter came in nice carton box, with instructions (multi-language) and connection cable female-female (Dupont?) for serial signals (6 wires). PCB is perfect (also other FT232RL signals available, if you need: RESET# , DCD#, DSR#, RI#, DTR# and CBUS0..4). Perfect tool for program / debug. Recommended to use one USB extension cable, to not insert the converter directly in USB port of laptop/PC. Extremely Recommended!

## Features

- FTDI FT232RL IC:Built-in original FTDI FT232RL IC. Supports 5V, 3.3V and 1.8V Logic TTL levels,You can switch Logic levels by jumper.
- Protective case: Come with a transparent protective casing, this transparent protective casing to effectively prevent static interference from the hand and prevent unintentional short circuit.
- Application:Support EEPROM, Vendor ID re-write, unbrick routers ,program ESP8266 module, interface to GPS modules, flash firmware on hard drive, update transmitter, interface to set top box and other compatible UART interface devices
- Compatibility: This USB to TTL adapter is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS
- WARRANTY:DSD TECH back this FTDI FT232RL USB to TTL UART adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TXVRQ7V |
| Are Batteries Included | No |
| Best Sellers Rank | #4,378 in Computers ( See Top 100 in Computers ) #3 in Serial Adapters |
| Brand | DSD TECH |
| Color | Multicoloured |
| Customer Reviews | 4.8 4.8 out of 5 stars (840) |
| Date First Available | 12 July 2019 |
| Item Weight | 5.66 g |
| Item model number | SH-U09C2 |
| Manufacturer | DSD TECH |
| Operating System | Linux, Windows 7, Windows XP |
| Power Source | DC |
| Product Dimensions | 3.81 x 1.02 x 0.38 cm; 5.67 g |

## Product Details

- **Colour:** Multicoloured
- **Compatible devices:** Hard Drive, Laptop
- **Connector type:** USB
- **Item dimensions L x W x H:** 38 x 10 x 4 millimeters

## Images

![DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming - Image 1](https://m.media-amazon.com/images/I/713yLWT7yNL.jpg)

## Questions & Answers

**Q: Why does the product photo have a jumper across txd and rxd?**
A: The jumper between TX and RX is mainly used for testing.
Short TX, RX means you will receive any data you send.
When you program or debug, you can quickly confirm if the TTL adapter is damaged.
It saves you time and quickly locates faults.

**Q: What is the maximum baud rate of this device?**
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.

**Q: Does this work with the arduino ide to upload sketches to the arduino pro mini?**
A: yes ,it work with arduino ide to upload sketches to pro mini.

**Q: I  want to confirm, 5v from the usb side is output to vcc as 5v or converted to 3.3v /1.8v by jumper and sets ttl interface level correct?**
A: Hi, I just checked this on mine with a DMM to verify.  Your assumption is correct: the jumper will alter the VCC to 5/3.3/1.8V.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good product
*by S***R on 17 December 2025*

Good build quality...and excellent in working....

### ⭐⭐⭐⭐⭐ Super - GOOD!
*by D***N on 19 January 2021*

It's with real FT232, working tested on Win 10/64bit. Fantastic, as you can choose the voltage 1V8-3V3-5V by choosing onboard jumper position. One year ago I had to telnet into one Dahua IP camera and it was quite difficult to find at the moment one USB to Serial TTL (3V3) interface. Very nice built, in transparent case so you can see onboard LEDs (Power/Tx/Rx) and quickly troubleshoot communication issues. The converter came in nice carton box, with instructions (multi-language) and connection cable female-female (Dupont?) for serial signals (6 wires). PCB is perfect (also other FT232RL signals available, if you need: RESET# , DCD#, DSR#, RI#, DTR# and CBUS0..4). Perfect tool for program / debug. Recommended to use one USB extension cable, to not insert the converter directly in USB port of laptop/PC. Extremely Recommended!

### ⭐⭐⭐⭐⭐ very good ttl to usb converter
*by S***J on 22 March 2021*

Very nice product in plastic encasing. Works fine for flashing the ESP8266s..

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-08*