TP-LINK (Archer T4E) AC1200 (300 867) Wireless Dual Band PCI Express Adapter 2 x External Antenna 802.11ac - Dual Band Wi-Fi for Faster Connections TP-LINKs 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 applications. Greater Coverage with Beamforming Beamforming technology smartly focuses Wi-Fi signals towards connected devices for stable connections and boosted range. Heat Sink for Ultimate Stability A heat sink helps to dissipate the thermal energy generated by the adapter, which in turn improves stability. Additionally, lower temperatures help to extend the product lifespan. External Antennas for More Targeted signal Two external antennas utilize the latest wireless technology to achieve stable connections and boosted coverage. Main Features Easy Installation - Plug the adapter into an available PCI-E slot to upgrade your desktop High-Speed Wi-Fi - Up to 1200 Mbps Wi-Fi speeds (867 Mbps on 5 GHz band and 300 Mbps on 2.4 GHz band) 802.11ac Dual Band - 3 times faster than the 802.11n standard, perfect for high-intensity network usage Beamforming - Wi-Fi signals are strengthened towards a certain direction where client exists Multiple-Size Brackets - Low profile and full height brackets are both provided, suitable for all PCs 2z2 MIMO - Users can easily access a high-speed wireless connection Broad Wireless Range - Two external antennas ensure greater Wi-Fi coverage and enhanced stability Key Features RF Network Standard802.11a/b/g/n/ac Interface TypePCI Express WPS SupportNo Removable AntennaYes WiFi Speed1200 Mbps Wireless Adapter TypeInternal Wireless Communications WiFi Type802.11ac Warranty Warranty1 Year