Identify the practical need
Check whether your issue is power, device compatibility, unstable Wi-Fi or something else. Confirm official support before buying adapters or a new screen; an advertised network speed says little about your actual coverage.
Read the separate terms
Review warranty and return conditions with the hardware seller, and data charges with your network provider. Player licences can also be separate purchases. Ask support about the exact device you intend to use before spending on an assumed solution.