AGPTEK [OTG Hub & SD Card Reader] Multi-in-1 Reader with Micro 5 Pin Connection for OTG Mobile Phones (Black) (SD, TF, MMC, Etc.) 4 in 1 card reader for mobile phone with OTG function Instant access to your SD,TF,RS-MMC,MS micro(M2),SDHC, Micro SD, MINISD, mmc, MMC Plus etc. without using the computer. Not support SDXC memory card(more that 32gb, up to 32GB). Supports to connect the mouse, keyboard, and U disk to your OTG mobile phone via its USB port Portable for field work. It only weighs 37g with the dimension of 6*6.5*1(cm) Please note: this product can only support your smartphones with Micro-USB port and OTG function or the device with USB host.