1,New USB flash drive 2,USB2.0,Hi-speed 3,Original flash,2GB,4GB,8GB 3,Free customized logo 4, ... 15mbps) & writing(3-5 mbps)3),Support Hot plug and play,4),No extra power required,5),Support: DOC, ... 1-year guarantee.7),Can be repeated to wiped and written one millions times.8),Data retention: OVER 10 ... years9),Pass CE,FCC and ROHS certifications ;10),USB power :4.5V-5.5V11 ...