E12 is an 11AC PCI-E wireless adapter. The 2. 4G rate can reach up to 300Mbps, and the 5GHz rate can reach 867Mbps. It provides better online gaming and 4K Ultra HD video streaming. E12 adopts 2 * 5dBi external antennas with high gain dual band to ensure the better wireless penetration ability. AC1200 Wireless Internet Connectivity for PC E12 is a 11AC PCIe adapter, which upgrades your PC wireless connection to 1167Mbps. Offering 867Mbps over 5GHz or 300Mbps over 2. 4GHz for online gaming. 5dBi Antennas for Stronger Signal Penetration 2 external detachable 5dBi dual-band antennas can adjust the angle of signal transmission flexibly, which provides the stable signal from a long distance. WPA2 - Reliable Security for Your Connections E12 supports the reliable Wi-Fi security standard WPA2, which has a more mature identity authentication algorithm, to protect the PC network from hackers. Compatible with Win10 Compatible with Windows 10 operating systems and IEEE 802.11ac/a/n/g/b wireless protocol standard.