Economical option as latest features combined ie. OTG feature and SD SDHC card reader. The standard USB 2.0 plug (type A) and micro USB plug (type B) combination, making the card reader compatible with all tablets and Android smartphones that support OTG function. Compact card reader for all standard SDHC/SDXC and micro SD/micro SDHC/micro SDXC. Just plug the card reader in to use it.