Easy InstallationPlug the adapter into an available PCI-E slot to upgrade your desktop High-Speed Wi-FiUp to 1200 Mbps Wi-Fi speeds (867 Mbps on 5 GHz band and 300 Mbps on 2.4 GHz band) 802.11ac Dual Band3 times faster than the 802.11n standard, perfect for high-intensity network usage BeamformingWi-Fi signals are strengthened towards a certain direction where client exists Multiple-Size BracketsLow profile and full height brackets are both provided, suitable for all PCs 2×2 MIMOUsers can easily access a high-speed wireless connection Broad Wireless RangeTwo external antennas ensure greater Wi-Fi coverage and enhanced stability 802.11ac - Dual Band Wi-Fi for Faster ConnectionsTP-LINK's Archer T4E supports the advanced Wi-Fi standard of IEEE 802.11ac, offering 3 times transferring rates as IEEE 802.11n. You can send emails and browse the web with 2.4GHz network, while keeping the speedy 5GHz band free for gaming, HD streaming and other bandwidth intensive applicatio