Sliding Metal USB Flash Drives With KeychainSpecification StyleSliding Style Book shape USBSize33mm x 20mm x 7mmWeight9.8gColorRed , black ,blue, gold, silverMaterialAluminum alloyWarranty3 yearsCustom LogoSilk printing , color printing , Laser PrintingInterfaceUSB 2.0Capacity1MB,2MB,32MB,64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GB, 16GB,32GB,64GBChipToshiba ,Samsung , SANDISKWriting speed3-8MB/sReading speed10-20MB/sCompatibleXP, Windows 7, Windows 8, windows 10, Vista ,  Linux etcAttention●When you start to use USB, please make sure have no virus of your computer, otherwise may broken files in USB ●If no necessary, please do not  directly plug from computer. Otherwise can influence  the USB working life●Please Back up your important files. Do not cut files to transfer it ●The following situations may cause the date losing : Accidental Power off, Electricity Erratic , Accidental deletion and format , virus broken , Password and Authority etc.●Logo printing , please offer AI  or CorelDraw files and Panton colors of your logo ●All USB default Package is OPP , Gift package black box , Plastic box, tin box , white paper box etc can be chosen