Transcend USB 2.0 OTG Card Reader, Black (TS-RDP9K) Multifunctional card reader including SD and micro SD card slots, and a USB port Double card slots support SDHC UHS-I, SDXC UHS-I, micro SD, micro SDHC UHS-I, microSDXC UHS-I, SD, SDHC, SDXC, micro SD, micro SDHC, and microSDXC Extremely slim and lightweight design for supreme portability Connects to your mobile devices that support USB On-The-GO (USB OTG) Offers a free download of Transcend Elite app on Android Google Play