A very useful computer data recorder, that is suitable for almost every (if not every) home computer on the market.
The box contains the Data Recorder in two parts, as well as a 6V AC/DC converter:
The Data Recorder can be used as is (either powered by the power adapter or by four AA batteries) with phono jacks to a jack controlled home computer like ZX Spectrum. You can also attach the second part, the Interface Unit using the connectors: In this you attach the included cables for Commodore 64/VIC-20 (User data cable) and Atari 8-bit (SIO cable) to use it for computers with proprietary I/O interfaces.
The cassette also bears the Compu-Mate name. As of 2012, the company was listed as the fourth-largest in the world among the Forbes Global 2000, further metrics being taken into account.