Universal Micro SD Flash USB Memory Card Reader For Mobile Phone & PC! Small form factor, easy to carry. USB A male with a micro USB dual- plug design, Smart Phone and PC support dual interface. Without data via PC, smartphone and memory card bidirectional transmission. Fully compliant with high-speed USB 2.0 transfer protocol, the maximum transmission up to 480Mb/s. Supports high-speed large -capacity SDXC, micro SDXC memory card, up to 128GB. SD v3.0 UHS-I specification, the maximum transfer 104MB per second.