“That’s A Gimme*”–Telstra Aircard does not work with Windows 10.

A long discontinued product which doesn’t work with Windows 10.

The customer said it doesn’t detect the SIM card.

If you have or are planning to use a Telstra USB 4G (320U) or Telstra USB 3G (312U) on a PC currently running Windows 10, please note that the Telstra Connection Manager software is currently incompatible with that operating system.
Telstra USB and Windows 10 Incompatibility

* – “a thing that is very easy to perform or obtain, especially in a game or sport.”