1) Built-in security features enable users to download, store and play secure content 2) Read speed: 3 Mbps (max.) 3) Write speed: 3 Mbps (max.) 4) Operating Temperature: -2585癈 5) Voltage: 2.7V to 3.6V 6) Dimensions: 21.5mm x 20mm x 1.4mm 7) Weight: 1.5g 8) Includes Adapter and Plastic Case