CyLab is a combination of USB driver, programming library, REALbasic plugin and sample application for MacOS 9 and MacOS X. It provides support for a series of USB hardware I/O interfaces based on the Cypress CY7C63001 processor.

Application development can be done in the original Mac API or Carbon on Mac OS 9, in Carbon on OS X, in Cocoa on OS X (PowerPC or Intel), or in REALbasic (PowerPC). A REALBasic tutorial in German has been kindly written by Ralf Krause.

Thanks go to B. Kaika, Modul-Bus and Ralf Krause for their support.