These preferred 802.11ac adapters are available for use with AirMagnet WiFi Analyzer:

• NetAlly AM/D1080
• Edimax EW-7833UAC AC1750
• Alfa AWUS 1900
• Proxim Orinoco 9100

 NOTE: These are not supported on Windows 7 systems.

The drivers for these adapters are located in your My AirMagnet account under Documents / Drivers. 

The drivers are also available locally after you have installed the product:
C:\Program Files (x86)\AirMagnet Inc\AirMagnet Laptop\NTCTUSBDriverInstaller\setup.exe

• Driver provider: Realtek Semiconductor Corp.
• Driver date: 12/19/2016
• Driver version 1030.13.704.2016

 These adapters offer the full feature set of AirMagnet WiFi Analyzer and are considered to be preferred adapters, with the following exception:

• These adapters will not report noise or SNR due to limitations set by the manufacturer; noise will display as -100

Because USB 3.0 signaling is known to cause interference in the 2.4GHz band, users are prompted to select the desired mode of operation when launching the WiFi Analyzer application: USB 2.0 or USB 3.0.

At product launch with a single preferred 802.11ac adapter, you will be prompted to select from the following options:

• Operate the selected adapter in USB 2.0 mode.
  • Use to avoid USB 3.0 interference.
  • This locks the port down to 2.0, regardless of the hardware port type.
  • This may limit the total throughput of the adapter.
• Operate the selected adapter in the USB mode supported by the hardware port type.
  • This uses whatever the hardware port supports: 3.0 or 2.0.

When more than one preferred 802.11ac adapter is used, the USB 2.0 option is required. This may limit the total throughput of the adapters. When launching in multi-adapter mode with more than one 802.11ac USB adapter, USB 2.0 is assumed for all adapters.
 

Reference material for USB 3.0 interference:
http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequency-interference-paper.html