Rosewill AC600 WiFi Adapter/PCI-E Wireless Adapter/Network Card, Dual Band Wireless 11AC Wi-Fi Card/Adapter $18.99 FS

Up to 433 Mbps + 150 Mbps wireless data speed: Achieves a maximum theoretical throughput of up to 150 Mbps over 2.4 GHz and up to 433 Mbps over 5.0 GHz. Supports dual band connectivity. Seamlessly compatible with all 802.11a/b/g/n/ac products.
Dual Band Connectivity: Experience smoother video streaming and online gaming by choosing the clearer 5.0 GHz band for wireless connections or online chat and email at 2.4 GHz band.
Distributes heat away from core components to improve reliability and performance of the PCIe wireless network adapter. Supports Advanced Security: 64 / 128 WEP, WPA / WPA2, WPA-PSK / WPA2-PSK (TKIP / AES).
Wider Wireless Coverage and Beamforming Technology: 2 x external antennas provide wider coverage for Wi-Fi network and bundled utility provides quick, hassle-free installation. Connect with stronger, more reliable wireless connections for desktops, PC, computers.
High Speed Wi-Fi Adapter compatible with Windows XP / Vista / 7 / 8 / 8.1 / 10.