Hi, I need some kind of NAS to backup multiple computers and network-enable a printer.. I've been looking at Synology's offerings but have a few questions.. Does the NAS need to be connected via ethernet or can I use wireless? Does it work with any USB printer or do I need to check specific protocols? It's a fairly modern HP.. Already got spare HDD's to put in it, just need to decide on a box now! Cheers!