universal reader phone pc smart micro usb reader flash otg tf / sd memory 2 in 1 dual card reader adapter

description: small, lightweight and easy to carry plug and play, no external power needed support computer and otg mobile phones with sd/t-flash card slot transmission speed: 480mbits operation voltage: 2.7v-3.6v dc from usb port support memory card: up to 32g byte available for: pc and otg mobile phone etc color: black package include: 1 x card reader