You can take an old SSD or even a flash drive and turn it into a small network drive to get you on your self-storage journey. That's possible because the best Wi-Fi routers have a USB port on them ...
If Diskpart does not recognize a new SSD in Windows 11/10, check if there is nothing wrong with the physical connection, and then execute the solutions mentioned here.
The USB-C connection means it's compatible ... a desktop that keeps system files on an SSD and program files on an HDD, a smaller solid-state drive will be more cost-effective.