3 x AirPcap Nx Product Specifications. 4.920-5.825 GHz (a/n). 802.11n Supported Modes. HT20 mixed mode. HT40 mixed mode. In this mode, the adapter captures HT40, HT20 and. Legacy mode frames simultaneously. Capture of A-MPDU and A-MSDU frames. ° Up to 2 spatial streams. ° Detection of Short and Long Guard Interval. Up to 54Mbps for 802.11a/b/g. Up to 130Mbps (20MHz channels) and 300Mbps (40MHz channels) for. Two integrated MC-Card connectors for optional external antennas. WPA PSK (in Wireshark). WPA2 PSK (in Wireshark). USB Bus (no external power). 300mA (max) or 1.5 Watt (max). Operating: 0C to 55C. Storage: -20C to 70C. 3 x USB AirPcap Nx.