It is used to play CAS files (games and apps) from a MicroSD card through an audio cable into where the tape deck would normally plugin thus eliminating the need for a 30-year-old tape deck. Its a play only function so no record feature. You can still record using conventional methods though. Simply find your favourite game or app in CAS file format, copy it to the sd card and the rest is straight forward. It was designed for MSX computers. Its based on Maxduino firmware.
If you opt for it we provide an audio cable and a USB cable but you will need a power source for the USB. Any will do since it doesn’t require a great deal of power to run. When purchasing a microSD card do not get a cheap or a super-fast one like a class 10 card. Look for a class 4, 6, or 8. You will need to own or buy (from ebay) an MSX data cassette cable as show in this pircture > HERE < and Check out this independent review > HERE <