The old power supply started to become unreliable and constantly produce new errors. A new was needed, - but you get today no longer sufficient with 4-pin Molex connectors for four IDE devices plus graphics card. This adapter has now completed the remedy: At last I can connect all drives. The adapter works einwandrei, processing seems good to me. A useful aid for a small price, without whom I would have to scrap my tiptop functioning IDE devices! Strong buy recommendation!