Add high speed 802.11ac WiFi connectivity to a desktop PC through a PCI Express slot with dual band 2.4 5GHz frequencies and up to 867Mbps PCI Express AC1200 Dual Band WirelessAC Network Adapter PCIe 802.11ac WiFi Card WirelessAC Card 802.11abgnac 2 Transmitter 2 Receiver (2x2:2) antenna configuration.