For 99% of users (Windows 10/11, macOS 10.15+, modern Linux), the E5573Cs-322 is plug-and-play via USB and completely driver-free over Wi-Fi.

Unfortunately, a detailed feature article on requires a critical clarification upfront: This specific device (E5573Cs-322) does not require traditional software drivers for its core function as a 4G Wi-Fi hotspot.