Overview: Multi-Card Reader Manage all your Data directly on the Android Device High speed for copying and downloading 2 in 1 USB + Micro USB plug, compatible with all android phones with a micro USB connector. Card reader could work with external memory cards such as micro SD card(TF card)and SDHC Specification: Item: Card Reader Interface: Micro USB and USB 2.0 connectors. 1x SD/MMC slot, 1x Micro SD/TF slot Compatible with Micro USB Andriod mobile devices with OTG function. Color: Black Weight: 9g Material: ABS Support system: Windows 8.7.VISTA XP.MAC 10.4.6 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. Package Content: 1 x Micro USB OTG to USB 2.0 Adapter