SMSC MOST PCI Interface 25o OP3421 driver download and installation

MOST PCI Interface 25o OP3421 is a SMSC_MOST_PCI_Adapters hardware device. This Windows driver was developed by SMSC. In order to make sure you are downloading the exact right driver the hardware id is PCI/VEN_1853&DEV_3421&SUBSYS_00911853&REV_01.

1. SMSC MOST PCI Interface 25o OP3421 driver - how to install it manually

1. You can download from the link below the driver setup file for the SMSC MOST PCI Interface 25o OP3421 driver. The archive contains version 2.0.1.7 dated 2013-09-04 of the driver.
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3. Run the driver installer file from a user account with administrative rights. If your User Access Control (UAC) is running please confirm the installation of the driver and run the setup with administrative rights.
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5. Go through the driver setup wizard, which will guide you; it should be pretty easy to follow. The driver setup wizard will scan your computer and will install the right driver.
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7. When the operation finishes restart your PC in order to use the updated driver. As you can see it was quite smple to install a Windows driver!
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SMSC applied a digital signature to this driver.
Driver file size: 80976 bytes (79.08 KB)
This driver was rated with an average of 4 stars by 17598 users.
This driver is compatible with the following versions of Windows:

• This driver works on Windows 2000 64 bits
• This driver works on Windows Server 2003 64 bits
• This driver works on Windows XP 64 bits
• This driver works on Windows Vista 64 bits
• This driver works on Windows 7 64 bits
• This driver works on Windows 8 64 bits
• This driver works on Windows 8.1 64 bits
• This driver works on Windows 10 64 bits
• This driver works on Windows 11 64 bits

2. How to use DriverMax to install SMSC MOST PCI Interface 25o OP3421 driver

The most important advantage of using DriverMax is that it will setup the driver for you in the easiest possible way and it will keep each driver up to date. How can you install a driver using DriverMax? Let's take a look!

1. Open DriverMax and press on the yellow button that says ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your computer.
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3. Take a look at the list of available driver updates. Search the list until you find the SMSC MOST PCI Interface 25o OP3421 driver. Click on Update.
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5. That's it, you installed your first driver!
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