DSD TECH SH-U09C5 USB to TTL UART Converter Cable with FTDI Chip Support 5V 3.3V 2.5V 1.8V TTL

Works perfectly. Flashed four ESP8285 devices with ESPHome the first day I got it and had absolutely no problems. I bought a cheap programmer directly from a Chinese reseller website and spent hours debugging issues before I concluded it was a bad programmer; this FTDI adapter immediately fixed my issue. Worked without additional configuration when plugged into my laptop running Bazzite Linux. Instructions include a QR code for Windows drivers, which I installed then tested this adapter to confirm it works on a Windows machine as well.

GREAT USB adapter with all RS-232 signals. Used to modulate a DTR pin from a USB port with excellent results - solved a problem I'd been working with for WEEKS! Not mentioned was that an approximately 11-inch interface cable is also supplied, and the unit came with TX and RX pins shorted with a jumpter to make it easy to see the interface was working. I will definitely recommend this product to others!

Worked perfectly to act as an interface to reprogram a home energy monitor device. Built well, versatile, no issues when using in a Win11 environment.

Not much to say - does what it says on the tin. Easy to use, comes with everything you need. In my case I needed a short USB extension cable to accommodate the size, so I recommend a short one to accompany your purchase if you intend on using the neighboring USB port.

Nifty little device when one needs ttyl level RS232. Works great.

Worked well. I like the configuration for input voltage for logical "1"

Arrive very fast (3rd day). Worked well an ha good documentation. The only issue was finding the driver since I don’t trust scanning anything, but it wasn’t very hard. I initially had a hard time plugging in the cable connector for some reason. Works OK now.

I have been using this adapter for a few years now for all my ESPHome projects and absolutely love it! I've made custom cables I use for different types of devices I use it with so it is always ready to go. The fact it has voltage selection is super convenient as some of the devices in the ESP32 world need 5V and other 3.3V. Also, I use one of the pins (GND) for the cases in which you have to ground something to flash it. The fact it has a case is a MAJOR benefit compared to most other alternatives... who knows how many I would have shorted to date without a case! Absolutely recommend it!!