Intel(R) Serial IO SPI Host Controller - 51DF driver

Hardware ID PCI\VEN_8086&DEV_51DF

Vendor: Intel (VEN 8086)
Device: Intel(R) Serial IO SPI Host Controller - 51DF (DEV 51DF)
Bus: PCI / PCI Express
Drivers: 6
Windows: Windows 10Windows 11

Recommended driver

Intel Serial IO I2C Host Controller - 51E8 Driver

Version 30.100.2531.31 · Jul 30, 2025 · Windows 10, 11 · 64-bit

All drivers for VEN_8086&DEV_51DF

Driver	Version	Date	Windows	Bits
Intel Serial IO I2C Host Controller - 51E8 Driver	30.100.2531.31	Jul 30, 2025	Windows 10, 11	64-bit

HP packages for this device

Packages published by computer makers for their own models. They contain the same chip drivers, configured for those computers.

Driver	Version	Date	Windows	Bits
Intel Serial IO Driver (HP)	30.100.2531.31	Dec 30, 2025	Windows 11	64-bit
Intel Serial IO Driver (HP)	30.100.2417.30	May 9, 2025	Windows 10, 11	64-bit
Intel Serial IO Driver (HP)	30.100.2237.26	Dec 12, 2024	Windows 10, 11	64-bit
Intel Serial IO Driver (HP)	30.100.2328.32	Mar 1, 2024	Windows 10, 11	64-bit
Intel Serial IO Driver (HP)	30.100.2237.26	Nov 9, 2022	Windows 10, 11	64-bit

Is this your device?

Press Win + X and open Device Manager.
Right-click the device (usually under Other devices, with a yellow mark), choose Properties and open the Details tab.
Select Hardware Ids in the list. If the first line starts with PCI\VEN_8086&DEV_51DF, the drivers above are for your device.

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