List of drivers for card O2Micro
| Driver Name | Operating System | Release Date Version | Link | |
|---|---|---|---|---|
 | O2Micro BH-778 Controller Drivers | Windows 10, Windows 11 | 2021-11-02 v.2.1.101.10530 |
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| O2Micro OZ776 USB CCID Smartcard Reader Drivers | Windows 10, Windows 11 | 2021-11-01 v.2.11.4.250 |
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| O2Micro OZ776 USB Card Reader Driver | Windows 8, Windows 8.1, Windows 10 | 2023-06-02 v.2.11.4.261 |
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| O2Micro BH-201 Card Reader Driver | Windows 7, Windows 8, Windows 8.1, Windows 10 | 2019-06-28 v.1.1.102.1027, v.1.1.102.1024, v.1.1.102.1020 |
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| O2Micro Integrated MS/MSPRO/xD Controller | Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 | 2009-07-14 v.2.1.1.317 |
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| O2Micro BayHubTech Integrated MMC/SD controller Drivers | Windows 10, Windows 11 | 2021-05-17 v.1.1.101.10420, v.1.1.101.1025, v.1.1.101.1023 |
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| O2Micro CR BH-778 Driver | Windows 10, Windows 11 | 2023-06-15 v.2.1.101.10650 |
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| O2Micro BH-201 Card Reader Driver | Windows 7, Windows 8, Windows 8.1, Windows 10 | 2020-07-07 v.1.1.102.1032 |
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| O2Micro OZ776 USB Card Reader Drivers | Windows 7, Windows 8, Windows 8.1 | 2017-02-26 v.1.1.4.232 |
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| O2Micro BH778 BayHubTech Flash Memory Card Driver | Windows 7, Windows 8, Windows 8.1, Windows 10 | 2016-08-02 v.1.1.1.1013 |
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| O2Micro MemoryCardBus Accelerator Driver | Windows XP | 2006-01-03 v.1.0.8.82 |
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| O2Micro CR BH-778 Driver | Windows 10, Windows 11 | 2023-02-09 v.2.1.101.10640 |
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| O2Micro BH-778 Card Reader Driver | Windows 10, Windows 11 | 2021-11-08 v.2.1.101.10540 |
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| O2Micro BayHubTech Integrated MMC/SD controller Drivers | Windows 10 | 2016-12-29 v.1.1.1.10171 |
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| O2Micro CR BH-778 Driver | Windows 10, Windows 11 | 2023-06-25 v.2.1.101.10660 |
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Find drivers for O2Micro card reader controllers used in many laptops and desktop motherboards. This category provides signed installers and ZIP packages for internal and USB-connected card readers that enable SD, microSD, MMC and Memory Stick support. Available files cover common O2Micro controller families and include 32‑ and 64‑bit builds for modern Windows releases (Windows 7, 8, 10, 11) and several legacy variants; release notes indicate supported hardware IDs and version history.
To download and install: select the package that matches your hardware ID or laptop model, download the installer or INF archive, unzip if needed, run setup.exe or update the driver through Device Manager, then reboot. If automatic setup fails, use the hardware VEN_/DEV_ ID to pick the correct INF. Check digital signatures, back up the current driver and create a system restore point before changes. Compatibility can vary due to OEM customizations—if a generic driver won’t load, try the vendor-specific package listed. Each download includes a README with installation tips and troubleshooting steps.