SANDISK Ultra Dual 32GB - BLACK [SDDD2-032G-GAM46] Specifications : - Interface : micro-USB and USB 2.0 connectors (one connector used at a time) - Available Capacities: 16GB, 32GB, 64GB and 128GB**1GB = 1,000,000,000 bytes. Actual user storage less. - Compatibility : USB 2.0 - Compatible with PC & Mac computers no drivers needed - Windows XP , Windows 7, Windows 8, Mac OS X v10.5+ - Operational Temperature: 0~60 C - Dimensions : 36.58 x 19.81 x 10.92 - Requires host device with On The Go (OTG) compatibility