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Download OZ777 SD MMC Card Reader Controller

System Information

Your PC is currently running:

Driver details

Driver Name: OZ777 SD MMC Card Reader Controller

Provider: BayHubTech

Version: 1.1.1.1013

Release Date: 8/2/2016

Architecture: X86

File Size: 755 KB

Driver ID: pci\ven_1217&dev_8520

Supported OS: Windows 10

WHQL: Signed

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All links have been scanned by antivirus program.

Manual download (.cab, 755 KB) from Microsoft servers — install via Device Manager.

Compatible hardware

OZ777 SD/MMC Card Reader Controller (O2 Micro, Inc.)
OZ711 SD/MMC Card Reader Controller (O2 Micro, Inc.)

Supported Hardware IDs

pci\ven_1217&dev_8420

pci\ven_1217&dev_8421

pci\ven_1217&dev_8520

pci\ven_1217&dev_8520&subsys_05bd1028

pci\ven_1217&dev_8520&subsys_05be1028

pci\ven_1217&dev_8520&subsys_05cc1028

pci\ven_1217&dev_8520&subsys_05cd1028

pci\ven_1217&dev_8520&subsys_060f1028

pci\ven_1217&dev_8520&subsys_06101028

pci\ven_1217&dev_8520&subsys_06251028

Show all 53 hardware IDs

pci\ven_1217&dev_8520&subsys_06261028

pci\ven_1217&dev_8520&subsys_062f1028

pci\ven_1217&dev_8520&subsys_06841028

pci\ven_1217&dev_8520&subsys_06ef1028

pci\ven_1217&dev_8520&subsys_221117aa

pci\ven_1217&dev_8520&subsys_369417aa

pci\ven_1217&dev_8520&subsys_380017aa

pci\ven_1217&dev_8520&subsys_388117aa

pci\ven_1217&dev_8520&subsys_504c17aa

pci\ven_1217&dev_8520&subsys_505417aa

pci\ven_1217&dev_8520&subsys_506617aa

pci\ven_1217&dev_8520&subsys_607e17aa

pci\ven_1217&dev_8520&subsys_609517aa

pci\ven_1217&dev_8520&subsys_60ae17aa

pci\ven_1217&dev_8520&subsys_b28219da

pci\ven_1217&dev_8620

pci\ven_1217&dev_8620&subsys_000417aa

pci\ven_1217&dev_8620&subsys_380017aa

pci\ven_1217&dev_8620&subsys_380117aa

pci\ven_1217&dev_8620&subsys_380317aa

pci\ven_1217&dev_8620&subsys_380417aa

pci\ven_1217&dev_8620&subsys_504117aa

pci\ven_1217&dev_8621

pci\ven_1217&dev_8621&subsys_10521025

pci\ven_1217&dev_8621&subsys_10631025

pci\ven_1217&dev_8621&subsys_20648086

pci\ven_1217&dev_8621&subsys_222c17aa

pci\ven_1217&dev_8621&subsys_224917aa

pci\ven_1217&dev_8621&subsys_224a17aa

pci\ven_1217&dev_8621&subsys_380017aa

pci\ven_1217&dev_8621&subsys_380117aa

pci\ven_1217&dev_8621&subsys_380217aa

pci\ven_1217&dev_8621&subsys_381f17aa

pci\ven_1217&dev_8621&subsys_382017aa

pci\ven_1217&dev_8621&subsys_390217aa

pci\ven_1217&dev_8621&subsys_390317aa

pci\ven_1217&dev_8621&subsys_505b17aa

pci\ven_1217&dev_8621&subsys_505c17aa

pci\ven_1217&dev_8621&subsys_511817aa

pci\ven_1217&dev_8720

pci\ven_1217&dev_8721

pci\ven_1217&dev_8722

pci\ven_1217&dev_8723

Match against Device Manager → Details → Hardware Ids to confirm this driver fits your device.

File details

File name: 20908441_21de22e12ab9887e1b38b1c9412f6e573a2a5833.cab

File size: 773972 bytes (0.7 MB)

Signed / DriverVer: 08/02/2016,1.1.1.1013

Provider (INF): BayHubTech

Catalog file: bhtpcrdr.cat

SHA-256:

1554c7719eba9bfae53439d7e0b6312a375661d6e9ad1a019cdfa17bd2362289

To verify: open PowerShell and run Get-FileHash <filename.cab>

What's inside the package (5 files)

SDPA8220.dll 488.4 KB

bhtpcrdr.cat 16.2 KB

bhtpcrdr.inf 103.4 KB

bhtpcrdr.sys 141.3 KB

bhtv5Icon.dll 1.2 MB

All versions of this driver

Version	Release Date	Architecture	OS
2.1.101.10700	8/15/2024	AMD64	Windows 11	2.1.101.10700
2.1.101.10690	1/15/2024	AMD64	Windows 11, Windows 10	2.1.101.10690
2.1.101.10670	9/28/2023	AMD64	Windows 11, Windows 10	2.1.101.10670
2.1.101.10580	8/11/2022	AMD64	Windows 11	2.1.101.10580
1.1.101.1038	10/15/2020	AMD64	Windows 10	1.1.101.1038
1.1.101.1033	9/25/2019	AMD64	Windows 10	1.1.101.1033
1.1.1.1013	8/2/2016	X86	Windows 10	(this page)
1.1.1.1012	7/12/2016	X86	Windows 10	1.1.1.1012
1.2.2.1076	5/4/2015	X86	Windows 10	1.2.2.1076
2.2.2.1076	5/4/2015	AMD64	Windows 10	2.2.2.1076

Related drivers

Drivers: The Foundation of Stable Device Performance

Why Are Drivers So Important?

Drivers play a crucial role in maintaining system stability. Outdated or corrupted drivers can lead to:

Malfunctions in hardware operation.

Slower system performance.

Errors, freezes, and other technical issues.

It is recommended to update drivers every 3–6 months. This is especially important before installing a new operating system, as updated drivers may be required to ensure compatibility.

How to Keep Your Drivers Up to Date?

Regularly check for driver updates.

Download drivers only from trusted sources, such as manufacturers’ websites.

Restart your system after installing new drivers to apply the changes properly.

Automatic method for updating and downloading drivers (Recommended):

If you prefer not to search for the right driver manually, there are tools that can automatically detect your device model and find a compatible driver. This reduces the risk of errors and saves time.

Download and install the app

Scan your device

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All links have been scanned by antivirus program.

Manual driver installation

Note: Installing an incorrect driver version may cause system issues. If you're unsure which driver to choose, we recommend using the automatic method.

Download the driver via Device Manager. How to open Device Manager:

In Windows 11, 10, and 8.1, right-click the "Start" menu and select "Device Manager."

In Windows 8, swipe up from the bottom or right-click anywhere on the desktop, select "All Apps" -> swipe or scroll to the right and choose "Control Panel" (under "Windows System") -> Hardware and Sound -> Device Manager.

In Windows 7, click "Start" -> "Control Panel" -> "Hardware and Sound" -> "Device Manager."

How to install drivers using Device Manager:

Find the device causing the issue, double-click it to open "Properties."

Go to the "Driver" tab.

Click "Uninstall" and follow the instructions.

For reinstallation, either insert the manufacturer's disk or run the downloaded installer, following the instructions.

If you want to simply update the driver, press "Update Driver" in the "Properties" window and follow the instructions.

How to Update a Driver for Free Using Outbyte Driver Updater

Keeping your device drivers up to date helps ensure stable Windows performance and proper hardware operation. Below is a step-by-step guide explaining how to update a single driver for free using Outbyte Driver Updater. This guide describes a method to update one selected driver without activating a license and without providing any personal information or payment details.

Can You Update a Driver for Free Without Registration?

Yes.

Outbyte Driver Updater allows you to:

scan your computer for outdated drivers at no cost;
view a list of detected drivers;
update one selected driver for free;
avoid entering an email address, name, credit card number, or any other personal data.

The free update process requires only the installed program and the standard scan and update steps.

Step 1: Launch the Program and Scan Your Computer

Download and install Outbyte Driver Updater on your Windows PC.

After launching the program, it will automatically start scanning your system and checking installed drivers.

Step 2: Close the Activation Window

After the scan, an “Activate now” window may appear.

To continue for free:

click the close (X) button in the top-right corner of the window.

No information needs to be entered

Step 3: Select the Driver Category

From the menu on the left, choose the device category you want to update, such as:

audio drivers;
video and graphics drivers;
network and Wi-Fi drivers;
Bluetooth drivers;
printer and scanner drivers.

Step 4: Click “Update” Next to the Selected Driver

In the driver list, locate the driver you want to update and click the Update button next to it.

Step 5: Confirm the Driver Update

In the pop-up window, click Update driver.

At this stage, no personal data or payment details are required.

Step 6: Wait for the Update Process to Finish

The program will begin downloading and installing the selected driver.

Please wait until the process is complete.

Step 7: Apply Changes and Restart Your Computer

After the installation finishes, click Apply now to apply the changes.

To ensure the updated driver works correctly, restart your computer.

Important Notes

Free updates are available one driver at a time.
No registration is required for the free update.
No credit card or payment information is requested.
All actions are performed locally within the program after scanning your system.
Free update availability may depend on the driver type and system configuration.

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