Product Details  flash disk,usb flash  SpecificationAvailable Capacities128MB, 256MB, 512MB, 1GB, 2GB, 4GBCompatibilityPC or Notebook with a USB interfaceOperating SystemsWindows Vista/XP/2000/ME/98/95, Mac OS 8.6 and above, Linux 2.4.XDriversOnly required for Windows 98/95. Online download availableTransfer RateHigh Speed USB 2.0. USB 1.1 CompatibleData retention10 Years MinimumDimensions L x W x H5 3/4" x 1/2" x 1/2" (146mm x 12.7mm x 12.7 mm)Imprint SurfaceMetalWeight1.23oz ( 35g )WarrantyLifetime Warranty FeatureFeatures:Ball Point Pen, USB Cap, Optional Laser, Sleek & Compact.Standard Production:3-4 WeeksRush Service:10-14 Business DaysAvailable Colors: Imprinting Options:4 Color Imprint, Laser EngravingImprint Locations:Front Side, Reverse SideImprint Area:1 3/8" x 1/4" (34.92mm x 6.35mm)