Commodore Datasette
The Commodore 1530 (C2N) Datasette (a portmanteau of data and cassette), was Commodore's dedicated computer tape drive.
It provided access to an inexpensive storage medium for Commodore's 8-bit home/personal computers, notably the PET, VIC-20, and C64. A physically similar model Commodore 1531 was made for the Commodore 16 and Plus/4 series computers.
Read more about Commodore Datasette: Description and History, Interface, Physical Coding, Models