SD Series 5 in 1 Card reader. Features: Use as a USB Flash Drive by inserting Memory Card USB 2.0 Plug-n-Play Compatibility. Supports Micro SD (T-Flash). PC & Mac Compatible Package Contents: SD Series 5 in 1 Card Reader User's Manual Warranty Information System Requirements: PC & Mac Compatible Windows 2000, XP and Vista Mac OS 10.2 or Above Available USB Port