"MAC Address Pass-Through" uses the system-unique MAC address entered in the system Basic Input/Output System (BIOS) which is then used to override the adaptor MAC address every time it’s connected to the network. This way the network sees the system-unique MAC address instead of the adaptor MAC address. In this way used to identify and manage individual assets and permissions on a network. Please note: If the adaptor is used on a system not supporting "MAC Address Pass-Through" the feature is not available and it will use the MAC address of the adaptor instead.