Unknown Enhanced Serial Multi-1/PCI - two ways of downloading and installing the driver

Enhanced Serial Multi-1/PCI is a Multi Port Serial device. This Windows driver was developed by Unknown. PCI/VEN_14a1&DEV_4d01&REV_70 is the matching hardware id of this device.

1. Unknown Enhanced Serial Multi-1/PCI - install the driver manually

1. You can download from the link below the driver setup file for the Unknown Enhanced Serial Multi-1/PCI driver. The archive contains version 1.704.01.002 dated 2013-06-26 of the driver.
2.  
3. Run the driver installer file from a user account with the highest privileges (rights). If your User Access Control (UAC) is started please confirm the installation of the driver and run the setup with administrative rights.
4.  
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.
6.  
7. When the operation finishes shutdown and restart your computer in order to use the updated driver. It is as simple as that to install a Windows driver!
8.  

This driver is digitally signed by Unknown.
The file size of this driver is 241559 bytes (235.90 KB)
This driver received an average rating of 4.3 stars out of 2670 votes.
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 Unknown Enhanced Serial Multi-1/PCI driver

The 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 can you install a driver using DriverMax? Let's follow a few steps!

1. Start DriverMax and click on the yellow button that says ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your computer.
2.  
3. Take a look at the list of driver updates. Scroll the list down until you locate the Unknown Enhanced Serial Multi-1/PCI driver. Click the Update button.
4.  
5. That's it, you installed your first driver!
6.