How big is the capacity? If it’s 256GB (for example), you can buy a 256 GB memory stick from Amazon for £20-ish and back up the data.
And this page will tell you the rest…
If it’s windows, https://support.microsoft.com/en-us/...8-52ef2b88cbef
If it’s Mac, https://support.apple.com/en-gb/mac-backup