--- product_id: 276256682 title: "DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC" brand: "dsd tech" price: "€ 21.15" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.pt/products/276256682-dsd-tech-sh-u09c3-isolated-usb-to-ttl-adapter-featuring store_origin: PT region: Portugal --- # LED indicators for TX, RX & Power 1A current rating for stable power Industrial-grade USB isolation tech DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC **Brand:** dsd tech **Price:** € 21.15 **Availability:** ✅ In Stock ## Summary > 🛠️ Power your projects with isolated precision and never miss a byte! ## 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?** € 21.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/276256682-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 - • **Durable & Safe Design:** Protective casing prevents accidental contact with circuitry, combining safety with sleek portability. - • **Dual Voltage Flexibility:** Switch effortlessly between 3.3V and 5V logic levels with a simple jumper—adapt to any project. - • **Rock-Solid USB Protection:** ADI iCoupler tech shields your PC from shorts & shocks, keeping your workflow uninterrupted. - • **Visual Debugging Made Easy:** Built-in LED indicators let you monitor TX, RX, and power status at a glance. - • **Plug & Debug with Confidence:** FTDI FT232RL chip ensures ultra-stable data transfer for seamless serial communication. ## Overview The DSD TECH SH-U09C3 is a compact, industrial-grade isolated USB to TTL adapter featuring the reliable FTDI FT232RL IC. It offers robust protection for your computer’s USB port using ADI’s iCoupler isolation technology, supports both 3.3V and 5V logic levels, and includes LED indicators for real-time data transmission monitoring. Designed with a protective case and backed by a 1-year warranty plus lifetime support, it’s the go-to tool for professionals demanding stable, safe, and efficient serial communication. ## Description The SH-U09C3 is an industrial-grade isolated USB to TTL adapter. It uses FTDI's FT232RL chip to protect your computer from voltage spikes and shorts. Supporting both 3.3V/5V logic with jumper selection, it features status LEDs and a protective case. This adapter is built around the industry-standard FTDI FT232RL USB-UART chip, guaranteeing high stability and data integrity. It offers plug-and-play compatibility with Windows, Linux, and Mac OS, ensuring dependable performance with all major serial terminal applications. This module provides full 1500VDC galvanic isolation for both power and data lines. This critical feature protects your computer and microcontroller from damaging voltage spikes, ground loops, and electrical noise, ensuring safe operation in demanding industrial and electrically noisy environments. The included protective case safeguards the internal circuitry and prevents accidental contact. Shipped with a ready-to-use DuPont cable, this complete kit allows for a safe and immediate connection to your microcontroller right out of the box. ## 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. - DSD TECH offers a 1-year warranty and lifetime technical support for this isolated USB-to-TTL adapter.If you meet any question, Please contact us, We will fix your issue within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07TS3GPQ1 | | Best Sellers Rank | #61,346 in Computers (See Top 100 in Computers) #167 in Serial Adapters | | Brand | DSD TECH | | Color | Multicoloured | | Compatible Devices | PC, Laptops | | Connector Type | usb | | Current Rating | 1 Amps | | Customer Reviews | 4.6 4.6 out of 5 stars (134) 4.6 out of 5 stars | | Finish | Matte | | Input Voltage | 5 Volts | | Item Dimensions | 50 x 11 x 3 millimeters | | Item Weight | 0.3 Ounces | | Manufacturer | DSD TECH | | Mfr Part Number | SH-U09C3 | | Model Number | SH-U09C3 | | Number Of Items | 1 | | Number Of Ports | 2 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Specific Uses For Product | PC | | Unit Count | 1 Count | | Upc | 734678383294 | | Warranty Type | Limited | ## Product Details - **Colour:** Multicoloured - **Compatible devices:** PC, Laptops - **Connector type:** usb - **Item dimensions L x W x H:** 50 x 11 x 3 millimeters - **Specific uses for product:** PC ## 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) ![DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - Image 2](https://m.media-amazon.com/images/I/71ubW37iMmL.jpg) ![DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - Image 3](https://m.media-amazon.com/images/I/71Djesl-HBL.jpg) ![DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - Image 4](https://m.media-amazon.com/images/I/61TiF0xi1BL.jpg) ![DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - Image 5](https://m.media-amazon.com/images/I/61pAsYjhBlL.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 ### ⭐⭐⭐⭐⭐ Satisfactory *by on Reviewed in Sweden 11 January 2024* Works as expected, no problems encountered so far. ### ⭐⭐⭐⭐⭐ isolateur USB-ttl fiable et simple à utiliser sous tous OS *by on Reviewed in France 31 May 2024* Quand on cherche une liaison USB-ttl fiable, ce composant a une bonne puce FTDI, avec driver compatible windows même >10, linux ubuntu, mac, et il est isolé, donc plus de pb de CEM et tension secondaire disponible. Attention, il y a plusieurs versions chez le fabricant. Ca m'a sauvé pour faire fonctionner un appareil et le PC, car sinon les deux plantaient avec un câble non isolé.Je crois que ça existe aussi chez ce fabricant en version USB-UART, les signaux UART étant inversé par rapport à ttl, mais en 3 ou 5V contrairement au RS232 en -12/+12V. ### ⭐⭐⭐⭐⭐ Works without issues *by on Reviewed in the United Kingdom 29 April 2024* Used on victron ve direct. Would be nice to turn off the LED power and data indicators but not essential. Not checked the maximum data rate, works well at the lower end. ## Frequently Bought Together - DSD TECH SH-U09C3 Isolated USB to TTL Adapter Featuring FTDI FT232RL IC - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - WWZMDiB Mini USB to TTL Serial Converter Adapter, 3.3V/5.5V, FTDI Breakout Board for Arduino --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/276256682-dsd-tech-sh-u09c3-isolated-usb-to-ttl-adapter-featuring](https://www.desertcart.pt/products/276256682-dsd-tech-sh-u09c3-isolated-usb-to-ttl-adapter-featuring) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-29*