Description Materials: metal/zinc-alloy/aluminum alloy/stainless steel Colors: silver metal original color/customized oxidized colors/various Logo treatment: laser engraving/dark color engraving/silkscreen A-grade flash memory chip Plug-and-play: no need to install any software Flash memory capacity: 1/2/4/8/16/32/64GB Operation systems: Win 2000/XP/Vista/7, Mac operating system 8.6-10.13.2 Shaking and electromagnetic interfering resistant Secure data storage for long-time: more than 10 years USB 2.0 speed: write/read 5/15Mb/s USB 3.0 speed: write/read 15/80Mb/s All models supports USB 2.0 selected models supports USB 3.0 12-month quality warranty Certifications: CE/FCC/RoHS Directive-compliant   Packing: White box/plastic box/tin box/gift box Customized designs box as per order demands Export packing: PP bag-unit box-inner carton-export carton   Delivery: Shipping methods: DHL, UPS, FedEx Delivery time: 7-10 days after payment confirmed