Intel(R) Serial IO I2C Host Controller - 51E9
PCI\VEN_8086&DEV_51E9
What this hardware ID is
PCI\VEN_8086&DEV_51E9 is the identifier Windows uses for one exact piece of hardware. It is the reason a driver either fits your device or does not - Windows matches this code, not the name of your laptop. Here VEN_8086 is the company that made the chip (Intel Corporation), and DEV_51E9 is the chip model (Intel(R) Serial IO I2C Host Controller - 51E9).
Every driver listed below declares support for this exact code, so any of them will install on your device. Choosing between them:
- Take one that lists your Windows version and architecture - the badges are in the last column.
- A newer release date is usually the better start. If the newest one misbehaves, an older release is a perfectly normal fallback.
- SHA-256 verified means we downloaded that file ourselves and published its checksum and contents.
- Hardware ID
PCI\VEN_8086&DEV_51E9- Bus
- PCI
- Vendor
- Intel Corporation (8086)
- Device
- Intel(R) Serial IO I2C Host Controller - 51E9 (51E9)
- Compatible drivers
- 26
Devices and driver packages with this ID
Makers ship drivers for this exact code under different names - all of them fit the same chip:
- Intel SerialIO Software · Intel
- Intel Serial IO Driver · Intel
- Intel Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later) · Lenovo
- Intel Serial IO Software · Intel
- Intel Serial IO · Intel
- Intel Serial IO Driver - 10 (20H2 or later) 11 (21H2 or later) · Lenovo
- Intel Serial IO Driver - 11 (21H2) · Lenovo
- Intel Serial IO Driver - 11 (24H2) · Lenovo
- Intel Serial IO Driver - 11 (25H2) · Lenovo
- Intel SerialIO Driver · Intel
- Intel SerialIO driver · Intel
- Intel(R) Serial IO · ASUS
Drivers supporting this hardware (26)
Not sure which one? Start with the row marked Recommended: the newest release that has a verified file for Windows 11 and 10.
DriverManufacturerVersionReleasedWindows / ArchDownload
- RecommendedIntel Serial IO DriverSHA-256 verifiedIntel30.100.2531.33May 18, 2026Windows 1164-bitDownload
- Intel Serial IO DriverSHA-256 verifiedIntel30.100.2237.26April 7, 2026Windows 1064-bitDownload
- Intel Serial IO DriverIntel30.100.2417.30March 25, 2026Windows 11Windows 1064-bitDownload
- Intel Serial IO DriverSHA-256 verifiedIntel30.100.2328.32March 12, 2026Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 11 (25H2)SHA-256 verifiedLenovo30.100.2531.31January 12, 2026Windows 1164-bitDownload
- Intel Serial IO SoftwareSHA-256 verifiedIntel30.100.2531.31December 19, 2025Windows 1164-bitDownload
- WinTab Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo8.0.2.21December 9, 2025Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2417.30August 18, 2025Windows 11Windows 1064-bitDownload
- Intel SerialIO SoftwareSHA-256 verifiedIntel30.100.2417.30May 5, 2025Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 11 (24H2)SHA-256 verifiedLenovo30.100.2417.30February 12, 2025Windows 1164-bitDownload
- Intel Serial IO DriverSHA-256 verifiedIntel30.100.2418.12February 3, 2025Windows 1064-bitDownload
- Intel Serial IO SoftwareSHA-256 verifiedIntel30.100.2417.30September 24, 2024Windows 11Windows 1064-bitDownload
- Intel Serial IOSHA-256 verifiedIntel30.100.2417.30August 7, 2024Windows 11Windows 1064-bitDownload
- Intel SerialIO SoftwareSHA-256 verifiedIntel30.100.2237.26May 16, 2024Windows 11Windows 1064-bitDownload
- Intel Serial IO DriverSHA-256 verifiedIntel30.100.2148.1March 4, 2024Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 11 (21H2)SHA-256 verifiedLenovo30.100.2237.26January 15, 2024Windows 1164-bitDownload
- Intel Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2237.26November 7, 2023Windows 11Windows 1064-bitDownload
- Intel SerialIO SoftwareSHA-256 verifiedIntel30.100.2221.20December 29, 2022Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2212.4November 3, 2022Windows 11Windows 1064-bitDownload
- Wintab Driver - 10 (1903 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo7.7.2.51October 24, 2022Windows 11Windows 1064-bitDownload
- Intel SerialIO driverSHA-256 verifiedIntel30.100.2221.20September 29, 2022Windows 11Windows 1064-bitDownload
- Intel Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2148.1May 30, 2022Windows 11Windows 1064-bitDownload
- Intel(R) Serial IO Driver - 10 (20H2 or Later) 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2148.1May 26, 2022Windows 11Windows 1064-bitDownload
- Intel(R) Serial IO Driver - 11 (21H2 or Later)SHA-256 verifiedLenovo30.100.2148.1April 12, 2022Windows 1164-bitDownload
- Intel(R) Serial IOSHA-256 verifiedASUS30.100.2105.7October 26, 2021Windows 11Windows 1064-bitDownload
- Intel SerialIO DriverSHA-256 verifiedIntel30.100.2105.7October 25, 2021Windows 11Windows 1064-bitDownload
If the device still does not work
Other Intel Corporation hardware IDs
- Intel(R) Innovation Platform Framework Processor Participant - PCI\VEN_8086&DEV_A71D79
- Intel(R) Management Engine Interface - PCI\VEN_8086&DEV_1E3A30
- Alder Lake PCH-P High Definition Audio Controller - PCI\VEN_8086&DEV_51C838
- Intel(R) Management Engine Interface - PCI\VEN_8086&DEV_A2BA146
- PCI\VEN_8086&DEV_4D2824
- Intel(R) Ethernet Connection I219-V - PCI\VEN_8086&DEV_15D6105
- Intel(R) HD Graphics 620 - PCI\VEN_8086&DEV_5916&SUBSYS_829A103C6
- Intel(R) Ethernet Connection (19) I219-V - PCI\VEN_8086&DEV_550D80