Download and install Unknown Enhanced Serial Multi-1/PCI driver

Enhanced Serial Multi-1/PCI is a Multi Function hardware device. This driver was developed by Unknown. In order to make sure you are downloading the exact right driver the hardware id is PCI/VEN_14a1&DEV_4d01&REV_90.

1. Manually install Unknown Enhanced Serial Multi-1/PCI driver

1. Download the setup file for Unknown Enhanced Serial Multi-1/PCI driver from the link below. This download link is for the driver version 5.0.7 released on 2010-02-24.
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3. Run the driver installation file from a Windows account with the highest privileges (rights). If your User Access Control (UAC) is started then you will have to confirm the installation of the driver and run the setup with administrative rights.
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5. Follow the driver setup wizard, which should be pretty easy to follow. The driver setup wizard will analyze your PC for compatible devices and will install the driver.
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7. Shutdown and restart your computer and enjoy the updated driver, it is as simple as that.
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This driver is not digitally signed.
Download size of the driver: 105253 bytes (102.79 KB)
This driver was installed by many users and received an average rating of 3.1 stars out of 19012 votes.
This driver is compatible with the following versions of Windows:

• This driver works on Windows 2000 32 bits
• This driver works on Windows Server 2003 32 bits
• This driver works on Windows XP 32 bits
• This driver works on Windows Vista 32 bits
• This driver works on Windows 7 32 bits
• This driver works on Windows 8 32 bits
• This driver works on Windows 8.1 32 bits
• This driver works on Windows 10 32 bits
• This driver works on Windows 11 32 bits

2. How to use DriverMax to install Unknown Enhanced Serial Multi-1/PCI driver

The most important advantage of using DriverMax is that it will setup the driver for you in just a few seconds and it will keep each driver up to date. How easy can you install a driver with DriverMax? Let's see!

1. Open DriverMax and click on the yellow button that says ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your PC.
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3. Take a look at the list of driver updates. Scroll the list down until you find the Unknown Enhanced Serial Multi-1/PCI driver. Click the Update button.
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5. Enjoy using the updated driver! :)
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