Hello, yes it does have a USB connector, mine is actually plugged into a USB NAS Synology DS720+, so that brings me to the second answer, no need for an adapter to connect to my Synology, I simply took the original cable from the Synology transformer to power the UPS and took the cable supplied with the UPS to connect my Synology transformer to the UPS.I simply took the original cable from the Synology transformer to power the UPS and used the cable supplied with the UPS to connect my Synology transformer to the UPS.