Sadly, yes, they are very similar. The big clues would be to look for words such as “NAS” or “Network” vs “USB”.
Nevertheless, return it and buy what you need. If that is not an option, on your other post you mentioned connecting the external USB hard drive to a router that has USB port.
That would be the easier solution, access the drive on the network when connected to the router via USB. In a few words, find out if your router has NAS/file server functions. Check the manual.
Good luck!
