When your memory stick or your USB stick are too small, you still have a solution: take a complete had disc with!Thanks to this adaptor you can connect any hard disc with IDE connection per USB.(for example: IDE 3.5’’ hard disc, IDE 2.5’’ hard disc, CD-Rom player, DVD burner, etc…)- Compatible USB 2.0 and USB 1.1- Plug and play- Compatible with Windows 98/ 98SE/ ME/ 2000/ XP and Mac OS since 8.6- External transformer for IDE 3.5’’ players connection included