hello friends! new(ish)!
Compact Cassette
This dongle is a Compact Cassette, more commonly known as Audio Tape and Audio Cassette, was a previous standard for recording audio as well as data. Tape, much like records and VHS is making a comeback in the hobbyist market, especially for Vaporwave Musicians.
What most plebs don't know is that Audio Cassette had many different formats, just like VHS. These were three primary different types, based on the material used. Type II was primarily used for the Audio Industry due to its affordability, but Type III was the highest in fidelity.
Tapes for data were known professionally as SAM, or Sequential Access Memory (compare to RAM: Random Access Memory).
Early versions of Dolby Digital were on Cassettes, but require a Dolby-compatible machine. The last versions of Dolby that were supported on cassette were rarer due to CDs gaining in popularity, so you may find only older systems at thrift stores supporting second-to-top-of-the-line machines. These are still satisfactory for most.