Features: ⊙With laser functions! ⊙Suitable for using large capacity of computer or small size laptop ⊙It is very safe to save data,at least 10 years of data retention ⊙Built-in flash memory,can be repeat to wiped and written to one million times ⊙Support hot Plug-and-play; No driver required;No external power supply required, USB bus-powered ⊙USB2.0 standard,high speed,reading speed:12M/S,writing speed: 11M/S (computer configuration dependent) ⊙Supports multi-partition and password access ⊙Supports BIOS booting as USB-ZIP or USB-HDD ⊙With beautiful desgin,easy to schlep ⊙Capacity: 64MB, 128MB, 256MB, 512MB, 1GB, 2GB, 4GB ⊙USB power:4.5V-5.5V ⊙Working temperature:-40°C ~ +70°C ⊙Save temperature:-50°C ~ +80°C Spec: ⊙Product size(LxWxH):6.8x3.x1.1cm ⊙Product weight:12g ⊙Mostly material:Plastic and Aluminium