Page 4»www.vantecusa.com/system/applica···s100.pdfI think the mini 4 pin power, is to power the adapter. Which makes me think, it use a controller chip.Exp:IDE ----- adapter with controller chip ------ SATAAnd that chip in it needs power. That's what the 4 pin is for in this case.
So you also have to connect the four-pin molex to power the drive, right?
Yes, SATA data cable + 4 pin power to that adapter.The IDE harddrive will have the adapter plug in, and also need to have 4 pin power plug in as well.