Provides an extensible design that enables Service prioritization for data. Network Standard : IEEE 802.11 a/b/g/n/ac Design that delivers high availability, scalability, and for maximum flexibility and price/performance Instant 802.11ac Wi-Fi Upgrade for your desktop PC: no more messy Ethernet cables needed Next-generation 802.11ac chipset for super-fast connections up to 867 Mbps. Security 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPS support OS Support-Windows 8.1 32bit/64bit, Windows 8 32bit/64bit,Windows 7 32bit/64bit,Windows Vista 2bit/64bit,Windows XP 32bit/64bit Instant 802.11ac Wi-Fi upgrade for your desktop PC: no more messy Ethernet cables needed Next-generation 802.11ac chipset for super-fast connections up to 867 Mbps Selectable dual-band 2.4 GHz/ 5 GHz operation, backwards-compatible with all existing devices Broadcom TurboQAM technology gives 33% faster 802.11n performance, with speeds up to 400 Mbps High-power design reduces wireless dead zones with 150% greater coverage Specially designed heatsink ensures stable and reliable continuous operation