Micro SD Card Memory Card TF Card 1,2 years warranty 2,fast delivery 3,reasonable price & high quality promotion Micro SD Card Memory Card TF Card : OEM or ODM ... Fast; plug-and-play, meet the USB2.0 specification, the speed of data transmission. Safe and reliable;Rewritable one million times ... power supply, USB bus-powered Data read speed: 8M-18M / S (USB2.0) Data write speed: 2M-7M / S (USB2.0) ...