Download and install FTDI Model USOPTL4 driver

Model USOPTL4 is a USB Universal Serial Bus device. The developer of this driver was FTDI. The hardware id of this driver is USB/VID_0856&PID_AC11; this string has to match your hardware.

1. FTDI Model USOPTL4 - install the driver manually

1. Download the setup file for FTDI Model USOPTL4 driver from the location below. This is the download link for the driver version 2.00.00 released on 2006-05-19.
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3. Run the driver setup file from a Windows account with administrative rights. If your User Access Control (UAC) is enabled 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 installation wizard, which should be pretty straightforward. The driver installation 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, as you can see it was quite smple.
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There is no digital signature available for this driver.
File size of the driver: 266610 bytes (260.36 KB)
Driver rating 4 stars out of 83280 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. The easy way: using DriverMax to install FTDI Model USOPTL4 driver

The 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 easy can you install a driver using DriverMax? Let's take a look!

1. Start DriverMax and push on the yellow button named ~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 detected driver updates. Scroll the list down until you locate the FTDI Model USOPTL4 driver. Click on Update.
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5. Finished installing the driver!
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