A "serial number" for Zebra 2 is distinct from a "registration code" depending on where the software was purchased.

Zebra 2 features a unique, intuitive interface that allows users to easily navigate and manipulate its various parameters. With a vast range of features, including a flexible oscillator section, a comprehensive filter section, and a powerful modulation matrix, Zebra 2 has become a favorite among producers and musicians.

The hyphens are purely cosmetic; they aid readability but are ignored by the activation routine.

If you download a crack site claiming to offer a simple text string like ZEB2-1234-ABCD-EFGH , you are either looking at an obsolete version (pre-2016) or a virus.