Overview: IBM PC/AT or compatible Desktop or Laptop or Mac computer with USB port Microsoft Windows 98 SE/ME/2000/XP or above Linux kernel 2.4 or above MAC OS 9.X or above Capacity: 64M/128M/256M/512M/1G/2G Color: Red Material: Plastic Housing Dimension: 48.5mm * 42.5mm *15.1mm Weight: 9g