D-LINK DWA-582, Wireless Ac1200 Dual Band, Standard IEEE 802.11ac/n/g/b, Interface PCI Express, Frequency Band 2.4 to 2.5 GHz, 5.15 to 5.850 GHz, Black, Two 4.5 dbi external dipole antennas. The DWA-582 Wireless AC1200 Dual-Band PCI Express Adapter connects your computer to a high-speed network and provides a blazing-fast Wireless AC connection with superior reception.