The "2x2 11abgn Wireless LAN PCI Express Half Mini Card Adapter" refers to a wireless network card that supports Wi-Fi standards 802.11a, 802.11b, 802.11g, and 802.11n (often labeled as "abgn") for wireless communication. This type of adapter typically works with PCI Express (PCIe) slots on laptops or desktops and is used to provide wireless networking capability to the system. The "Half Mini Card" refers to the size of the card, often used in laptops or compact devices.

To use this adapter on a Windows computer, you will need the correct driver software that allows the operating system to communicate with the hardware and enable Wi-Fi functionality.