... Spec. :c Capacities:128mb, 256mb,512MB,1GB,2GB,4GB,8GB,16GB,32GB,64GBInterface Type:USB 2.0 compatible with USB 1 ... OSPower & Drives:No external power and driver neededLED Light:Dual LED indicates power and busy, read/writeShock Resistance :1000GStandards Certificates:CE ...