TP-LINK Archer T6E

Quick overview from the supplier:

PCIe Wireless AC1300 Dual Band Adapter, TP-LINK Archer T6E, 1300Mbps // Easy Installation – Upgrade your desktop system easily by plugging the Archer T6E Wi-Fi adapter into an available PCI-E slot Hi-Speed Wi-Fi – Up to 1300Mbps Wi-Fi speeds (867Mbps on 5GHz band or 400Mpbs on 2.4GHz band) 802.11ac Dual Band – 3 times faster than the 802.11n standard, perfect for hi-intensity network usage Backward Compatibility – With support for 802.11 a/b/g/n standards Broad Wireless Range – 2 external antennas ensure a greater range of Wi-Fi connection and stability