Rosewill 802.11AC, AC1200 PCI Express Wireless Adapter/Wi-Fi Adapter/Network Card (RNX-AC1200PCE) IEEE 802.11AC: The next and fastest generation of Wi-Fi, backwards compatible with IEEE 802.11a/b/g/n. Speeding up to 867Mbps at 5.0GHz + 300Mbps at 2.4GHz with a fast, reliable wireless connection for lag-free online gaming and video streaming. High power amplifiers and high gain antennas provide wider range of wireless coverage and wall-penetrating Wi-Fi performance Dual Band for all devices: 2.4GHz + 5GHz bands to support all your internet need Soft AP Mode makes the adapter into virtual Wi-Fi hotspot Supports advanced security 64/128 WEP, WPA/WPA2, WPA-PSK/WPA2-PSK (TKIP/AES) Built with a high dissipation heat sink to avoid overheating and to keep performance at its highest level while long term operation and with free magnetic stand and high gain antennas Standards: IEEE 802.11 a/b/g/n/ac Two detachable 5dBi Antenna Frequency Band: 2.40GHz-2.484GHz, 5.18GHz-5.850GHz System Requirements: Window XP 32/64, Vista 32/64, Win7 32/64 Provide wilder range for extensive internet uses Provide fast HD streaming and instant data transfers 2.4GHz + 5.0GHz networks give more speed and un-intervention Wi-Fi environment