ASUS ExpertBook B5 (B5402C, 12th Gen Intel) drivers
This page contains 148 official source records for ASUS ASUS ExpertBook B5 (B5402C, 12th Gen Intel). Select the exact hardware variant and operating system below before choosing a package. These are release records, including retained versions, not a list of mandatory installations.
Recorded systems and scope
BIOS / Firmware: 5 records
Windows 10 64-bit: 65 records
Windows 11 64-bit: 78 records
Only the listed systems have local records. Older Windows entries are historical download records, not a promise of current OS support. “Others” or an empty bitness field does not imply Windows compatibility.
What is available for this model
BIOS Update (Windows): 2 records
BIOS: 2 records
Firmware: 1 records
Driver Package: 6 records
Networking: 20 records
Chipset: 26 records
Audio: 21 records
Card Reader: 4 records
Pointing Device: 8 records
Bluetooth: 14 records
Camera: 9 records
Hotfix: 2 records
Utilities: 28 records
Biometric Authentication: 4 records
Graphics: 1 records
Vendors explicitly named in package titles include MediaTek, Intel, Realtek, ELAN. If more than one network package is listed, check the installed adapter vendor and hardware IDs; do not install every alternative.
Official hardware / BIOS variants recorded here: B5402CBA. Follow the exact variant selector below; this page does not choose the nearest suffix.
Select the actual system and bitness below, then compare category, version and release date with the package notes.
Use the official download button for the matching package. Follow the installation checks and the package’s own instructions.
Keep a record of what changed and test the affected function after any installer-requested restart.
Stop if your full model, hardware identity or operating system differs, or the installer rejects the package. Missing records do not establish that no driver exists. BIOS files require the separate power, recovery-key and exact-model checks.
Exact catalog model: ASUS ExpertBook B5 (B5402C, 12th Gen Intel)
Manufacturer: ASUS. Match this name and any hardware / BIOS variant with the label on your device. For network drivers, check the installed adapter vendor and device IDs in Device Manager.
Official source verification
Requested series / model label — select the full model below: ExpertBook B5 (B5402C, 12th Gen Intel). Checked 2026-10-04. ASUS official support page
Original page label: ASUS ASUS ExpertBook B5 (B5402C, 12th Gen Intel). The year and marketing name in the old article are not used to infer compatibility. Match the complete model and hardware variant shown in the official records.
Confirm the exact BIOS / hardware variant. Read ASUS instructions, connect reliable AC power and do not interrupt the update. Keep your BitLocker recovery key available. Do not flash a file solely because its model name looks similar.
BIOS for ASUS EZ Flash Utility
Device vendor
Unknown — not verified
BIOS / hardware variant
B5402CBA
Version
314
Official release date
2026-08-05
File size
18.02 MB
Last verified (official record)
2026-10-04
Hardware / device IDs: unknown
Description : It is recommended to download and update the BIOS and firmware for system performance optimization. The update takes a few minutes, please do not turn off your computer during the process to avoid critical problem that system cannot be turned on. Caution! Active updates are possible during the Windows Update process!
(UEFI is a firmware package that controls keyboard, monitor, disk and other hardware devices and provides software interface to help OS control hardware devices.)
Important Information: Optimize system performance
Description : It is recommended to download and update the BIOS and firmware for system performance optimization. The update takes a few minutes, please do not turn off your computer during the process to avoid critical problem that system cannot be turned on. Caution! Active updates are possible during the Windows Update process!
(UEFI is a firmware package that controls keyboard, monitor, disk and other hardware devices and provides software interface to help OS control hardware devices.)
Important Information: Optimize system performance Security update
Confirm the exact BIOS / hardware variant. Read ASUS instructions, connect reliable AC power and do not interrupt the update. Keep your BitLocker recovery key available. Do not flash a file solely because its model name looks similar.
BIOS Update for Windows
Device vendor
Unknown — not verified
BIOS / hardware variant
B5402CBA
Version
314
Official release date
2026-08-05
File size
19.98 MB
Last verified (official record)
2026-10-04
Hardware / device IDs: unknown
Description : It is recommended to download and update the BIOS and firmware for system performance optimization. The update takes a few minutes, please do not turn off your computer during the process to avoid critical problem that system cannot be turned on. Caution! Active updates are possible during the Windows Update process!
(UEFI is a firmware package that controls keyboard, monitor, disk and other hardware devices and provides software interface to help OS control hardware devices.)
Important Information: Optimize system performance
Description : It is recommended to download and update the BIOS and firmware for system performance optimization. The update takes a few minutes, please do not turn off your computer during the process to avoid critical problem that system cannot be turned on. Caution! Active updates are possible during the Windows Update process!
(UEFI is a firmware package that controls keyboard, monitor, disk and other hardware devices and provides software interface to help OS control hardware devices.)
Important Information: Optimize system performance Security update