... 98/95 and Mac systemInterfaceUSB3.0 ,USB 2.0 , compatible with USB 1.1Available Capacity1GB,2GB,4GB,8GB,16GB,32GB,64GB ... light and neutral-colored products (white, silver, etc.)Laser EngravingWorks with metal surfaces onlyProduces sharp, polished resultsMost durable (long-lasting) ... All of our usb flash drive are real capacity with brand chips,such as micron,toshiba,intel,samsung,etc. No bad,no fack ...