The Vantec SATA/IDE to USB adapter is good hardware. It lets you quickly plug a variety of internal drives into a computer via USB. Great for rescuing data off of an old disk or from a dead computer. It supports SATA and IDE in a variety of form factors and includes a power connector.
There’s nothing special about this Vantec adapter; Amazon has hundreds of similar adapters for $5–$30. The cheapest ones have lousy power supplies that can fry a hard drive, the Vantec one seemed to have better reviews. If I were needing an adapter a lot I’d buy one that supports USB 3.0.