Interesting youtube video featuring lots of info about this board and how to program it:  https://www.youtube.com/watch?v=L6HiulJPzgE
Relevant tutorial for this particular programmer and esp8266 module:  https://www.instructables.com/ESP-01-Programmer-From-UART/

Included is ONE unused in bag ESP8266 with a relay board, and a USB programmer for it as pictured.
These are very likely some sort of Chinese clone type thing - but they work just fine with the Arduino IDE in my testing.

Note:  I am unable to provide any sort of SUPPORT for these devices.   They're brand new, and I've used a few of them myself so I know they're working - but by buying these from me you accept that I cannot and will not provide guidance on HOW to use them or troubleshoot any particular functionality. They come with no warranty and are priced accordingly.