The "Code 10" Error If you see a yellow triangle and a "This device cannot start (Code 10)" error in Device Manager, it is likely due to a driver version mismatch. Windows Update often installs the newest driver, but the older Kinamax hardware requires an older driver version.

Last updated: April 19, 2026
Product: Kinamax TS9900 (USB to Serial / RS232 Adapter)

If you own a Kinamax TS9900 cable or adapter, you know it’s a reliable device for connecting older serial equipment to modern computers without a COM port. However, Windows 10, 11, and newer macOS versions do not automatically include the correct driver.

In this guide, you’ll learn how to download the Kinamax TS9900 driver for free from safe sources and install it properly.


  • Restart your PC.