The National Instruments PXI-PCI833x interface kits give PCs direct control of PXI systems using MXI-4 technology. You can also use NI PXI-8331 and NI PXI-8336 modules for linking multiple PXI chassis. MXI-4 is a high-bandwidth link that is transparent to software applications and drivers, therefore providing the ability to use high performance desktop computers or servers to control PXI systems.