O2Micro controller BH-778 Driver

O2Micro controller BH-778 Driver 2.1.101.10630

Driver package for Windows 10, 11, 32-bit & 64-bit. Released Sep 14, 2022.

Manufacturer
O2Micro
Version
2.1.101.10630
Release date
Sep 14, 2022
Windows
Windows 10Windows 11
Architecture
32-bit & 64-bit
Size
1.5 MB
Hardware IDs
9 supported (see list)
Category
Controllers › Other

Download

CardReader_O2Micro_Oz778_2.1.101.10630.zip
1.5 MB · SHA-256: 6f20d5b5264191ec4c108c6e7da444cd9d3b587c6c4613de9012dcc5d1369a4c · check on VirusTotal
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How to install

  1. Check that this is the right driver. Open Device Manager (right-click the Start button), right-click your device, choose Properties and look at "Hardware Ids" on the Details tab. The value should match one of the supported IDs below (more about hardware IDs).
  2. Extract it to a folder. If the folder contains setup.exe or install.exe, run it as administrator.
  3. If there is no installer, right-click the device in Device Manager, choose Update driver, then "Browse my computer for drivers", select the extracted folder (leave "Include subfolders" ticked) and click Next.
  4. Restart the computer and check that the device no longer shows a yellow warning sign in Device Manager.

Supported hardware IDs

This driver package declares support for 9 device IDs. Open an ID to see every driver available for that device.

Hardware IDDevice
PCI\VEN_1217&DEV_8420 BayHubTech Integrated MMC/SD controller(Generic)
PCI\VEN_1217&DEV_8421 BayHubTech Integrated MMC/SD controller(Generic)
PCI\VEN_1217&DEV_8520 O2 Micro, Inc. SD/MMC Card Reader Controller
PCI\VEN_1217&DEV_8620 O2Micro Integrated MMC/SD controller
PCI\VEN_1217&DEV_8621 O2Micro Integrated MMC/SD controller
PCI\VEN_1217&DEV_8720 BayHubTech Integrated MMC/SD controller(Generic)
PCI\VEN_1217&DEV_8721 BayHubTech Integrated MMC/SD controller(Generic)
PCI\VEN_1217&DEV_8722 BayHubTech Integrated MMC/SD controller(Generic)
PCI\VEN_1217&DEV_8723 BayHubTech Integrated MMC/SD controller(Generic)
DriverVersionDateWindows
Multicard Reader Driver (Lenovo) 10.0.26200.21385, 2.1.106.10074 Aug 24, 2026 Windows 11
Multicard Reader Driver (Lenovo) 10.0.26200.21385, 2.1.106.10072 May 26, 2026 Windows 11
Multicard Reader Driver (Lenovo) 2.1.101.10734, 10.0.26200.21385, 1.1.54.0 Mar 10, 2026 Windows 11
BayHubTech Integrated MMC/SD controller(Generic) Driver 2.1.101.10740 Mar 5, 2026 Windows 10, 11
Multicard Reader Driver (Lenovo) 10.0.26200.21385, 2.1.106.10072 Feb 25, 2026 Windows 11
Multicard Reader Driver (Lenovo) 10.0.26200.21385, 2.1.106.10072 Feb 6, 2026 Windows 10, 11
Multicard Reader Driver (Lenovo) 10.0.26200.21385, 2.1.106.10072 Dec 23, 2025 Windows 11
BayHubTech Flash Memory Card (Lenovo) 2.1.101.10734 Aug 13, 2025 Windows 10, 11
O2Micro BayHubTech Integrated MMC/SD BH-778 controller Drivers 2.1.101.10700 Apr 9, 2024 Windows 10, 11
O2Micro BayHubTech Integrated MMC/SD BH-778 controller Driver 2.1.101.10690 Jan 15, 2024 Windows 10, 11
O2Micro CR BH-778 Driver 2.1.101.10670 Sep 28, 2023 Windows 10, 11
O2Micro CR BH-778 Driver 2.1.101.10660 Jun 25, 2023 Windows 10, 11