Clock speed? Chipset?

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

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?

Yes. I've been programming numerous ESP8266 versions with this. No level shifting required

Can it be powered via vcc and via usb at the same time?

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.

Gave up. can anyone get this to work? even tried with term emulator and known=-good mcu.

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

HiLetgo FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino

Product ID: 263421889

Details

Colour
Red
Compatible devices
Personal
Connector type
Mini USB
Item dimensions L x W x H
15.2 x 1.3 x
Specific uses for product
personal

⚡Supports 3.3V & 5.5V working voltage

💾500mA self-resetting fuse for safe data transfer

🔌Mini USB connector for universal compatibility

MX$478

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Description

⚡ Power your projects with precision and ease — the ultimate USB-to-TTL converter!

COMPACT LIGHTWEIGHT - Slim 15.2cm x 1.3cm design fits perfectly in any tech setup without bulk.
BROAD OS COMPATIBILITY - Supports legacy Windows versions from 95 through 7 (32/64-bit) for versatile use.
PLUG PLAY SIMPLICITY - Effortlessly program Arduino Pro Mini without soldering—just slide and upload.
RELIABLE DATA INTEGRITY - 500mA self-restoring fuse protects your device and ensures stable communication.
ROBUST VOLTAGE FLEXIBILITY - Seamlessly operates at both 3.3V and 5.5V to suit diverse projects.

The HiLetgo FT232RL Mini USB to TTL Serial Converter is a compact, reliable adapter designed for seamless Arduino Pro Mini programming and serial communication. Featuring a genuine FT232RL chipset alternative, it supports 3.3V and 5.5V operation, includes a 500mA self-resetting fuse for protection, and offers broad compatibility with Windows OS versions up to Windows 7. Its mini USB connector and lightweight design make it an essential tool for makers, developers, and automotive tuners seeking efficient, solder-free connectivity.

Specifications

ASIN	B00IJXZQ7C
Best Sellers Rank	#5,408 in Computers ( See Top 100 in Computers ) #7 in Serial Adapters
Brand	HiLetgo
Color	Red
Compatible Devices	Personal computer, laptop, desktop
Connector Type	Mini USB
Current Rating	0.5 Amps
Customer Reviews	4.4 4.4 out of 5 stars (1,160)
Finish	Matte
Input Voltage	5.5 Volts
Item Dimensions	15.2 x 1.3 x 10.2 centimeters
Item Weight	0.01 Kilograms
Manufacturer	HiLetgo
Mfr Part Number	3-01-0661-1
Model Number	3-01-0661-1
Number of Items	1
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	personal
UPC	509049833148
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

MX$478

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews