I see a combo for
M.2 B, but not seeing anything for A+E as those keys are for different generally accepted standards.
This
site and this
site and this
page on Dell's site have decent explanations of the various keying standards and what each are. By design with these standards, A+E are typically your Bluetooth and WiFi - and separately Cellular (2G,3G,4G,5G) due to the power/data demands for performance. B key ends up being when talking about internal drive data and local I/O due to the inherent design for the types of data being transferred and communications with the device cards. B and M is 90% purely for data device cards (storage), and the other 10% for other forms, such as upgraded audio.
Theoretically, you can get a card with all of the wireless communications- but it is rare due to the aforementioned restrictions in design and power.