NI PXI-7953R

NI PXI-7953R is a PXI FlexRIO FPGA module, not a complete standalone digitizer or DAQ front end. NI documents FlexRIO modular I/O as a two-part architecture consisting of an FPGA module and a separate adapter module, with the adapter defining the physical I/O for the application. That distinction matters when cataloging this hardware: the PXI-7953R is the primary FPGA carrier and processing module within the FlexRIO family, while companion adapter modules provide the signal interface. https://docs-be.ni.com/bundle/ni-flexrio-fpga-module-getting-started/raw/resource/enus/373047b.pdf https://www.ni.com/en/shop/electronic-test-instrumentation/flexrio/what-is-flexrio/components-of-a-flexrio-system-with-modular-i-o.html

For model-specific resources, NI identifies the PXI-7953R with a Xilinx Virtex-5 LX85 FPGA. The installation guide lists 51,840 LUTs/flip-flops, 48 DSP48 slices using 25 × 18 multipliers, and 3,456 kbits of embedded block RAM for this model. NI also lists 128 MB of onboard DRAM for the PXI-7953R on its FlexRIO modular I/O component page. https://docs-be.ni.com/bundle/ni-flexrio-fpga-module-getting-started/raw/resource/enus/373047b.pdf https://www.ni.com/en/shop/electronic-test-instrumentation/flexrio/what-is-flexrio/components-of-a-flexrio-system-with-modular-i-o.html

Within the broader 79xxR family, the PXI-7953R is specifically a PXI module rather than a PXI Express module. NI distinguishes the PXI-795xR and PXIe-796xR families, and the installation guide states that the timebase reference source for NI PXI-795xR modules is PXI 10 MHz (PXI_CLK10). The same guide lists a 40 MHz default timebase for the PXI-7953R family. https://docs-be.ni.com/bundle/ni-flexrio-fpga-module-getting-started/raw/resource/enus/373047b.pdf