Wireless Dual Band N900 3x3 MIMO PCI Express(PCI-E Wi-Fi Adapter for PCs or Working Stations-PCIE Wi-Fi Card-PCIE Wireless Adapter-Qualcomm Atheros Wireless Network Adapter(NET-N900) - Newegg.com
Laptop Driver: Atheros AR5007EG Wireless Network Adapter Windows 7 Driver and Installation