D-Link DWL-G520M Wireless 108G PCI Adapter, 2XR, MIMO, Smart Antenna New integrated 2XR technology provides Xccelerated Rates and Xtended Range - up to 8x faster and 8x farther than standard 802.11g Embedded Smart Antenna MIMO technology for optimal wireless coverage and reception New D-Link Utility to efficiently manage and configure wireless settings Fully Compatible with both 802.11b and 802.11g Note: Purchase a DI-624M Wireless router (sold separately) to receive true optimum MIMO performance