Which interface is this?

[keyzex]

I found it among everything I collected, it is unmarked black in color.


I find an FTDI chip and one that is labeled LM393.


It's not like any of my KKL from China.


I have attached the result from mprog 3.5, which shows Fixed Serial Number = AL01KAL2


So what is this interface, someone who has the answer?

[Pyromaniak]

LOW POWER DUAL VOLTAGE COMPARATORS ---> LM393