The Wirelss MAXg PCI Adapter from Netgear is a PCI expansion card that adds wireless networking to your computer. The adapter is capable of speeds up to 125 Mbps when used in conjunction with other MAXg devices. It also supports standard 802.11g allows you to connect wirelessly at speeds of up to 54 Mbps. This gives you ample bandwidth to stream audio or video, play computer games or simply browse the web on a wireless connection. This is a great way to add wireless networking capabilities to your computer.