Hi there, for WiFi reception you simply need a free PCI slot (where graphics cards etc. are also connected). The cable that comes with it connects to an internal USB port. You can find out exactly where to find it in the manual for your mainboard (you can also find it on the manufacturer's website if you no longer have it). However, the USB cable is only necessary for Bluetooth reception. This means that if you only need the card for WiFi reception, the PCI connection is sufficient.