PCIe Wi-Fi AC Dual Band LAN Adapter, TP-LINK "Archer T4E", 1200Mbps, MIMO// Easy Installation – Plug the adapter into an available PCI-E slot to upgrade your desktopHigh Speed Wi-Fi – Up to 1200 Mbps Wi-Fi speeds (867 Mbps on 5 GHz band and 300 Mpbs on 2.4 GHz band)802.11ac Dual Band – 3 times faster than the 802.11n standard, perfect for high-intensity network usageBeamforming – Wi-Fi signals are strengthened towards certain direction where client existsMultiple-Size Brackets – Low profile and full heigh brackets are both provided, suitable for all PCs2?2 MIMO – Users can easily access to high-speed wireless connectionBroad Wireless Range – Two external antennas ensure greater Wi-Fi coverage and enhanced stability