NETGEAR WN311B RangeMax Wireless-N PCI Adapter Wireless-N PCI adapter delivers exceptional speed and range Delivers up to 270 Mbps of wireless throughput Provides up to ten times the range of 802.11g networ Backwards compatible with 802.11g/b wireless networks Device measures 4.72 x 5.04 x 1.06 inches (WxHxD)