Driver for Unknown Enhanced Serial Multi-1/PCI - downloading and installing it

Enhanced Serial Multi-1/PCI is a Multi Port Serial 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. Install Unknown Enhanced Serial Multi-1/PCI driver manually

1. You can download from the link below the driver installer file for the Unknown Enhanced Serial Multi-1/PCI driver. The archive contains version 1.704.01.002 released on 2013-06-26 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 Service (UAC) is running please accept of the driver and run the setup with administrative rights.
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5. Follow the driver installation wizard, which will guide you; it should be pretty easy to follow. The driver installation wizard will scan your computer and will install the right driver.
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7. When the operation finishes restart your computer in order to use the updated driver. It is as simple as that to install a Windows driver!
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This driver is digitally signed by Unknown.
Size of this driver: 241559 bytes (235.90 KB)
This driver was rated with an average of 5 stars by 2688 users.
This driver was released for 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. The easy way: using DriverMax to install Unknown Enhanced Serial Multi-1/PCI driver

The most important advantage of using DriverMax is that it will install the driver for you in just a few seconds and it will keep each driver up to date, not just this one. How easy can you install a driver with DriverMax? Let's follow a few steps!

1. Start 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. Scroll the list down until you find the Unknown Enhanced Serial Multi-1/PCI driver. Click the Update button.
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5. That's all, the driver is now installed!
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