If you are looking for the driver, it is critical to identify the specific chipset on your card (usually the largest black square chip): Oxford Chipset: Drivers can be found on the Delock Support Page for similar models. WCH Chipset: Drivers are often hosted by TITAN Electronics for universal PCI-E serial cards. Automatic Detection:

Remove the corresponding metal cover from the back of your PC case.

After a restart, the new COM or LPT ports should appear in your Device Manager under "Ports (COM & LPT)". Delock PCI Express Card to 2 x Serial