OEM / Brand 1GB Micro SD Card Low Price High Speed Data retention time: 10 years DHL,UPS,TNT,EMS Specification1.Available Capacity:1GB,2GB,4GB ... -play;no external power supply required,USB bus powered.11Provide OEM service,logo printing,data preload,autorun,customized programming etc.12 ... design can be changed as per buyers'need competitive price OEM 1GB micro sd card 1gb tf card