The NI PXI-8221 accepts two PC Cards in a single-slot PXI module, giving you more options for expanding PXI and CompactPCI systems. You can use the module to add any functionality from PCMCIA or CardBus plug-ins. Use the PXI-8221 with the NI PXI-8110, PXI-8108, PXI-8102, and PXI-8101 embedded controllers. Some previous-generation embedded controllers are also supported.