Wd5000H1U 00 Power Supply Specs. The drive inside the enclosure is a 3.5 probably a sata. If you need your data if its out of warranty you can disassemble the unit.
Output dc 12v max 2.0a (2000ma). 12v ~ 2.0a, connecter size: We liquidated some of the most storied brand names over the last 30 years.