Does National Instruments Offer PCIe x8 to x4 Adapters?

Updated Feb 15, 2019

Reported In


  • PCIe-8381

Issue Details

I have an x8 PCIe card that I'd like to use on my desktop which only has x4 slots. Are there adapters available to achieve this?


National Instruments does not currently offer any adapters or converters for this functionality. Additionally, due to the extensive testing resources that would be required to obtain, test, and verify appropriate behavior of our hardware, drivers, and software products with third party converters, National Instruments does not support the use of these adapters.

Additional Information

Using a third party adapter to achieve this functionality will cut potential throughput of your x8 card down to that of the x4 slot. More information on PCI Express bandwidth specifications can be found in PCI Express - An Overview of the PCI Express Standard.


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