---
product_id: 5643972
title: "HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V"
brand: "hiletgo"
price: "3.90 OMR"
currency: OMR
in_stock: true
reviews_count: 12
category: "Hi Letgo"
url: https://www.desertcart.com.om/products/5643972-hiletgo-ft232rl-mini-usb-to-ttl-serial-converter-adapter-module
store_origin: OM
region: Oman
---

# Supports 3.3V to 5.5V working voltage range Compatible with multiple Windows versions (Win95 to Win7) FT232RL chipset for reliable USB-TTL conversion HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V

**Brand:** hiletgo
**Price:** 3.90 OMR
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect Smarter, Code Faster – Your USB-TTL Gateway to Innovation!

## Quick Answers

- **What is this?** HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V by hiletgo
- **How much does it cost?** 3.90 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/5643972-hiletgo-ft232rl-mini-usb-to-ttl-serial-converter-adapter-module)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Built-in Safety:** Features a 500mA self-resetting fuse to protect your devices and maintain uninterrupted workflow.
- • **Voltage Flexibility:** Operates effortlessly between 3.3V and 5.5V, adapting to your project’s power needs.
- • **Robust Compatibility:** Supports a wide range of Windows OS versions ensuring smooth integration with legacy and modern systems.
- • **Compact & Lightweight:** Slim 6 x 0.5 x 4 inch design fits perfectly on your desk or in your toolkit without bulk.
- • **Plug & Play Powerhouse:** Seamlessly bridges USB and TTL serial communication with the trusted FT232RL chipset.

## Overview

The HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module is a compact, reliable tool designed for seamless USB to serial communication. Featuring the FT232RL chipset, it supports a flexible voltage range of 3.3V to 5.5V and is compatible with multiple Windows operating systems from Win95 through Win7. Its built-in 500mA self-resetting fuse ensures device protection, making it an essential adapter for developers and tech enthusiasts looking to streamline programming and debugging tasks.

## Description

desertcart.com: HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V : Electronics

Review: Works like a charm! - Works like it should. Used it to program an atmega1284p without any trouble! In fact, it worked so quickly without problems that I thought it wasn’t working!
Review: It does work! - It could be faked FTDI chip as others claimed. But, to be fair, it does work for its purpose. I used it to flash several ESP8266 based SonOff devices many times. There are two things I learned in the process though I would like to share: 1) This chip could output 3.3v or 5v. It is on 5v when I got it. You can switch to 3.3v using the jumper close to the output pins. If you are flashing ESP8266 devices like me, make sure you switch to 3.3v first! 2) Make sure the USB cable you use to connect this to your computer is a data cable, not a charging only cable. This was the reason it did not work for me at first.

## Features

- Chipset: FT232RL, not genuine FTDI chip, Working Voltage: 3.3V/5.5V
- RXD/TXD transceiver communication indicator, with 500MA self-restore Fuse
- Pin Definition: DTR,RXD,TX,VCC,CTS,GND
- Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/, do not Support Win8

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IJXZQ7C |
| Best Sellers Rank | #44 in Serial Adapters |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,217) |
| Date First Available | February 20, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.176 ounces |
| Item model number | 3-01-0661-1 |
| Manufacturer | HiLetgo |
| Product Dimensions | 6 x 0.5 x 4 inches |

## Product Details

- **Color:** Red
- **Compatible Devices:** Laptop, Desktop
- **Connector Type:** Mini USB
- **Item dimensions L x W x H:** 6 x 0.5 x 4 inches
- **Specific Uses For Product:** personal

## Images

![HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V - Image 1](https://m.media-amazon.com/images/I/61Oo9nuPl2L.jpg)
![HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V - Image 2](https://m.media-amazon.com/images/I/71AA3mmocnL.jpg)
![HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V - Image 3](https://m.media-amazon.com/images/I/61zRDOXK6EL.jpg)
![HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V - Image 4](https://m.media-amazon.com/images/I/61ts-+uwk0L.jpg)

## Available Options

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

## Questions & Answers

**Q: Clock speed?  Chipset?**
A: The chipset is in the description, it is the FTDI FT232rl, it is internally clocked so there is no easy way to know what it is set to.  If it helps I have personally run this unit at 115Kbps

**Q: The ESP8266 Wi-Fi chip uses 3.3 vdc. With switch set to 3.3 volts on the programmer can you directlyTx and Rx to the ESP chip without level shift?**
A: Yes.  I've been programming numerous ESP8266 versions with this.  No level shifting required

**Q: Can it be powered via vcc and via usb at the same time?**
A: While I have never done it, I only use it to program pro minis, it should be fine as long as it is under 500 mah, matches the 3.3/5v and shares the ground. I still think it would be best to program it only under USB power if possible though. At worst the fuse is tripped but that's what it is there for. If you ordered from me and do this, let me know your results. If it damages your board, please get in touch to get a no cost replacement.

**Q: Gave up. can anyone get this to work? even tried with term emulator and known=-good mcu.**
A: I found these only sort ot work with usb3.0. You can read, but not write. Don't forget some coms require rx and tx to flip. Rx of ftdi to tx of device... like with uart.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works like a charm!
*by J***N on January 23, 2026*

Works like it should. Used it to program an atmega1284p without any trouble! In fact, it worked so quickly without problems that I thought it wasn’t working!

### ⭐⭐⭐⭐⭐ It does work!
*by G***U on November 18, 2017*

It could be faked FTDI chip as others claimed. But, to be fair, it does work for its purpose. I used it to flash several ESP8266 based SonOff devices many times. There are two things I learned in the process though I would like to share: 1) This chip could output 3.3v or 5v. It is on 5v when I got it. You can switch to 3.3v using the jumper close to the output pins. If you are flashing ESP8266 devices like me, make sure you switch to 3.3v first! 2) Make sure the USB cable you use to connect this to your computer is a data cable, not a charging only cable. This was the reason it did not work for me at first.

### ⭐⭐⭐⭐⭐ Used it to mod my car's infotainment center.
*by T***S on August 22, 2022*

I used this to hack my '17 Yaris iA's infotainment center (which is identical to what is in a Scion iA and Mazda3, I believe.) It worked as well as any debugger. A couple dupont jumpers into the appropriate harness, a gator clip to the fins of a heatsink for ground, fired up PuTTY, stuck a stock firmware update image on a USB drive alongside the mod patches/program and ran the update in the car. I watched in the console window as it did it's thing, leaving me with a root shell afterward to run the patches and mods. And now I can mirror my phone, enable touch while driving, turn my car into a WiFi hotspot, play video files on the screen, use custom interface themes/backgrounds/animations, and a whole plethora of neat features. Not bad for <$10 and an afternoon of effort. Lately, I've been getting more into STM32 microcontrollers to make DIY music instruments (Teensy, Daisy Seed, Arduino), so I think this debugger might be relevant there as well and get a second life. I keep it with the cheap STLink V2 clone in my tools, and a coil of 6" dupont jumpers in case the kit is ever needed.

## Frequently Bought Together

- HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V
- 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
- EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-20*