This is a used PXI MXI-4 Interface Module, the NI PXI-8331 (copper). To connect two PXI chassis together with MXI-4, install a PXI-8331 (copper) or PXI-8336 (fiber-optic) module into any peripheral slot of the master chassis. Connect with the appropriate cable to a second PXI-8331 or PXI-8336 in slot 1 of the slave chassis.
National Instruments PXI-PCI8331 Controller Card Only
Card for PXI only
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.