Additional Information
PCI is the same standard on Macintosh systems, Windows systems, Linux, and UNIX systems.
Both types of the PCI-GPIB board are functionally identical, and switching between the boards should have no effect on your current applications. The NI-488.2 driver software for Mac Classic relies on chip information present on the PCI-GPIB/TNT4882C board, so it will not support the PCI-GPIB/TNT5004 board.
If your application is using LabVIEW, also make sure your version of LabVIEW (or other application development enviroment) is compatible with the versions of NI-VISA and NI-488.2 and is supported on your new Operating System.
LabVIEW and Microsoft Windows CompatibilityNI-VISA and LabVIEW Version CompatibilityNI-488.2 and LabVIEW Version Compatibility