My sis wants to drop another hard drive into her PC and I have a spare one laying around. It's ultra ATA 133. She's not sure what her interface is. It's around 3-4 years old to give you a time-frame. Would the ATA/133 work with a different interface (100? 66? 33?), just connecting it regularly? Would it be better (faster, more stable, etc.) to go through a PCI serial ATA card?
