1) Compatible with USB 1.1 and USB 2.0 interfaces 2) Capacity:64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GB,16GB 3) High-speed data transfer performance 4) Reading speed is up to 12 MB/s, writing speed is up to 6 MB/s. 5) Support multiple operation systems:Windows 98, 98SE, ME, 2000, XP, Vista, Mac and Linux OS 6) Data retention: 10 years 7) Supports multiple language 8) Hot Plug-and-play function 9) More than 1,000,000 times of usage 10) OEM and ODM is welcomed. 11) Product color: at customer option 12) Inside data customization services: Standard Data Preload,Menu-Prompt Autorun,Non-erasable Content,Custom Icon Creation. 13) Logo printing: silkscreen printing,off-set printing,laser engraving,hot stamping,pat printing,embossing,epoxy dome 14) Keychain,lanyard or extension cable is optional. 15) Packing: gift box,Tin box,white box,blister,polybag or customized box is optional. 16) Two steps before mass production:Artwork approval,vitual pre-production sample. Certificate:CE,RHOS,FCC 17) Fast delivery:5000pcs within 3working days. 18) Warranty:1year. 19) MOQ:50pcs.