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O2Micro OZ777 Card Reader Driver

O2Micro OZ777 Card Reader Driver 1.2.2.1051, 2.2.2.1051

Driver package for Windows 7–8.1, 32-bit & 64-bit. Released Aug 16, 2013.

Manufacturer
O2Micro
Version
1.2.2.1051, 2.2.2.1051
Release date
Aug 16, 2013
Windows
Windows 7Windows 8Windows 8.1
Architecture
32-bit & 64-bit
Size
12.6 MB
Hardware IDs
8 supported (see list)
Category
Card readers › O2Micro

Download

o2micro_oz777_O2Micro_3.0.8.23.zip
8.7 MB · SHA-256: 04088f3255a7fc3bcd874030c0329b8887abf81238ca341c01519cf3cb2d0718 · check on VirusTotal
Download
o2micro_Oz777_2.2.2.1051.zip
3.9 MB · SHA-256: e6661491fea9758c1d493087b0e079a5b9810208afde4d3c21e0997e63bb6329 · check on VirusTotal
Download

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.
This driver was released for Windows 7–8.1. On Windows 10 and 11 it may refuse to install, or Memory integrity (Windows Security, Device security, Core isolation) may block it. If a newer version is listed under other drivers for this hardware, use that one instead.

Supported hardware IDs

This driver package declares support for 8 device IDs. Open an ID to see every driver available for that device.

Hardware IDDevice
PCI\VEN_1217&DEV_8220 O2 Micro, Inc. OZ600FJ1/OZ900FJ1 SD/MMC Card Reader Controller
PCI\VEN_1217&DEV_8221 O2 Micro, Inc. OZ600FJ0/OZ900FJ0/OZ600FJS SD/MMC Card Reader Controller
PCI\VEN_1217&DEV_8320 O2 Micro, Inc. OZ600RJ1/OZ900RJ1 SD/MMC Card Reader Controller
PCI\VEN_1217&DEV_8321 O2 Micro, Inc. OZ600RJ0/OZ900RJ0/OZ600RJS SD/MMC Card Reader Controller
PCI\VEN_1217&DEV_8420 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
DriverVersionDateWindows
BayHubTech Integrated MMC/SD controller(Generic) Driver 2.1.101.10740 Mar 5, 2026 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
O2Micro CR BH-778 Driver 2.1.101.10650 Jun 15, 2023 Windows 10, 11
O2Micro CR BH-778 Driver 2.1.101.10640 Feb 9, 2023 Windows 10, 11
O2Micro controller BH-778 Driver 2.1.101.10630 Sep 14, 2022 Windows 10, 11
O2Micro controller BH-778 Driver 2.1.101.10580 May 10, 2022 Windows 10, 11
O2Micro BH-778 Card Reader Driver 2.1.101.10540 Nov 8, 2021 Windows 10, 11
O2Micro BH-778 Controller Drivers 2.1.101.10530 Nov 2, 2021 Windows 10, 11
O2Micro BayHubTech Integrated MMC/SD controller Drivers 1.1.101.10420, 1.1.101.1025, 1.1.101.1023 May 17, 2021 Windows 10, 11