HiRO H50323 Dual Band Wireless 802.11ac AC1200 11ac WiFi 2T2R 867Mbps PCIe PCI Express PCI-E x1 Adapter 2x 5dBi 5ft Omnidirectional Antenna Windows 10 8.1 8 7 Compliant w/the latest IEEE 802.11AC standard latest wireless technology, connecting up to 867Mbps for video streaming and gaming Dual band 2.4GHz and 5GHz avoid crowded 2.4GHz Frequency, connect at clear and less interference 5GHz with higher speed Pie PCI Express wireless adapter Standard PCI-E Pie PCI Express x1 suitable for use on x1 x4 x8 and x16 Slot