The ICUSB232V2 1 Port USB to Serial Adapter converts a USB port into an RS232 DB9 serial port to connect to, monitor, and control a serial device. Supporting data transfer rates up to 921.6 Kbps, the USB to serial cable is a convenient and cost-saving solution for providing serial connectivity to devices such as point-of-sale terminals, serial modems, industrial equipment, and a wide variety of other RS232 peripherals. The USB to RS232 converter is easy to install and offers broad operating system compatibility, including Windows® 8 and later, Linux and Mac OS®, for easy integration into mixed environments. Backed by a StarTech.com 3-year warranty and free lifetime technical support. Some driver installation packages may require you to disable driver signature enforcement in Windows 8, which will allow unsigned driver packages to be installed on your system. Note: Before you continue, save any open documents and close all open programs.

To disable driver signature enforcement, complete the following: • Press the Windows key + C. • Click Settings > Change PC Settings. • In the left pane, click General.

The USB to serial CG-4X232FTDI is a 4 Port RS232 to USB 2.0 serial adapter that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB).

• In the right pane, under Advanced startup, click Restart now. When your system finishes restarting, complete the following: • Click Troubleshoot > Advanced options > Startup Settings > Restart. When your computer restarts, driver signature enforcement will be disabled and you can install your drivers. Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again.

This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled. Some driver installation packages may require you to disable driver signature enforcement in Windows 8.1, which will allow unsigned driver packages to be installed on your system. Note: Before you continue, save any open documents and close all open programs. To disable driver signature enforcement, complete the following: • Press the Windows key + C. • Click Settings > Change PC Settings.

• In the left pane, click Update & Recovery. • In the left pane, click Recovery.

• Under Advanced startup, click Restart now. When your system finishes restarting, complete the following: • Click Troubleshoot > Advanced options > Startup Settings > Restart. When your computer restarts, driver signature enforcement will be disabled and you can install your drivers.

Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.­­­­­­­.

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You may need to disable Driver Signature Enforcement in Windows 10 to use some driver installation packages. When you disable this feature, you can install unsigned driver packages on your computer. Note: Before you continue, save any open documents and close all of your programs.

You will need to restart your computer to disable Driver Signature Enforcement. To disable Driver Signature Enforcement, complete the following: • Click the Windows icon in the taskbar.

• Click Power. • Press and hold the Shift key and click Restart. After your computer finishes restarting, complete the following: • Click Troubleshoot > Advanced Options > Startup Settings > Restart. When your computer finishes restarting, Driver Signature Enforcement will be disabled and you can install the drivers. Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.­­­­­­­. Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver: • Download the latest drivers from the StarTech.com website (). You can find the part number and product ID on the product’s packaging. Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C: Users your_name Downloads).