Stylish Micro USB OTG Card Reader Features: 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 USB2.0 transfer protocol , the maximum transmission up to 480Mb / s. Plug and play, no external power supply. Supports high-speed large -capacity SDXC, micro SDXC memory card, up to 128GB. Supports SD v3.0 UHS-I specification , the maximum transfer 104MB per second. Specifications: Material: ABS Dimensions : 55 x 16 x 10mm (L x W x H) Color: black, red, blue, white, green Transmission speed: 480Mb / s.