NI PXIe-7966R

NI PXIE-7966R is an NI FlexRIO FPGA module for PXI Express systems. Official NI documentation identifies it as a base FPGA module, not a standalone analog-input or digital-I/O device, and specifically directs users to adapter module documentation for I/O specifications. This distinction is important when cataloging the unit, because system functionality depends on the separate FlexRIO adapter module paired with the FPGA base.

The PXIe-7966R uses a Xilinx Virtex-5 SX95T FPGA with speed grade -2, which NI distinguishes from the related PXIe-7965R variant that uses the same SX95T family at speed grade -1. NI documentation for the PXIe-7966R also lists 640 DSP48 slices and 8,784 kbits of embedded Block RAM, while NI’s FPGA slice reference lists 14,720 slices for the Virtex-5 SX95T device used in this module.

Within the FlexRIO architecture, the PXIe-7966R provides the FPGA processing element and PXI Express connectivity, while separate adapter modules provide the front-end analog or digital interfaces. NI’s modular I/O overview lists 512 MB of onboard DRAM for this model and places it within the PXI Express-based FlexRIO family, making it suitable for custom FPGA-based instrumentation and signal-processing designs that require interchangeable I/O modules.