... above Windows 98/95 and Mac systemInterfaceUSB3.0 ,USB 2.0 , compatible with USB 1.1Available Capacity1GB,2GB,4GB,8GB,16GB,32GB,64GB ... with full capacityPlug-and-PlayNo External Power RequiredLED Indicator ... capacity with brand chips,such as micron,toshiba,intel,samsung,etc. No bad,no fack Q: Any sample charge for the USB flash ...