Download and install National Instruments NI 9421 driver

NI 9421 is a DAQ Device hardware device. This driver was developed by National Instruments. The hardware id of this driver is {5e9419d9-6dde-45bd-81e3-03eb116c8ad5}/VID_1093&PID_7160&SBRIO; this string has to match your hardware.

1. Manually install National Instruments NI 9421 driver

1. Download the setup file for National Instruments NI 9421 driver from the location below. This download link is for the driver version 23.3.0.49318 released on 2023-04-02.
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3. Start the driver setup file from a Windows account with administrative rights. If your UAC (User Access Control) is started then you will have to accept of the driver and run the setup with administrative rights.
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5. Follow the driver installation wizard, which should be quite straightforward. The driver installation wizard will scan your PC for compatible devices and will install the driver.
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7. Restart your computer and enjoy the new driver, it is as simple as that.
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This driver is not digitally signed.

This driver was installed by many users and received an average rating of 3 stars out of 19764 votes.

2. The easy way: using DriverMax to install National Instruments NI 9421 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, not just this one. How can you install a driver using DriverMax? Let's follow a few steps!

1. Open DriverMax and press on the yellow button named ~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 driver updates. Search the list until you find the National Instruments NI 9421 driver. Click on Update.
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5. Finished installing the driver!
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