NETGEAR (WNDA4100) N900 Wireless USB Adapter Dual Band (Certified Refurbished) Maximum performance - 450 + 450 Mbps of Wireless-N speed for HD video streaming, multiple downloads, andonline gaming, all at the same time Video streaming - Perfect for multiple HD video streams Dual band - Twice the bandwidth for better connection and less interference Secured connection - Push 'N' Connect offers a secured wireless Internet connection at the push of a button