WITMOTION UART 6-in-1 USB to Serial Converter, Multifunctional (USB to TTL/RS485/232, TTL-RS232/485, 232-485), Universal Adapter Module with CP2102 Compatible with Windows 7/8/10, Linux, Arduino

Worked great. Most UART->TTL adapters only expose RX & TX, but this one also exposes RTS and DTR which is great for use with ESP32 for automatic bootloader mode - connect DTR to GPIO0 and RTS to EN.

Worked like a charm to flash a 3rd part firmware on my wireless router. I had to manually download/install the chipset driver on Win10 (works out of the box under Linux though).

Works great! For $5 shipped how can you go wrong? I just used it to program a LinkNode R4 using TTL so it will respond to MQTT publications. I am very happy.

Worked perfectly, allowed me to reset a router directly, and fiddle with it. Love the documentation in the listing so I can figure it out even years after I bought it. Be sure to use the older drivers (before 3.4), don't use the Windows built in drivers which don't work on serial USB clone chips. If you have problems with Windows 10 auto updating your drivers look for wushowhide.diagcab

This was a great idea, at a great price... while it worked. After about 6 months of occasional use, it just randomly stopped connecting over USB. It worked this morning, but not this afternoon. Nothing appears fried, and all switches look correct - the RX light is on when connected to a TTL device, so I'm guessing that side of the connection is good, just no computer will acknowledge the USB connection.

successfully brought bricked router back to life. the tx rx lights are a bit misleading (didnt light up at successful connection, lit up when connected wrong). the driver can be installed automatically through device manager driver search.

Does just what it says

no support, where is the software, windows can't find a driver