Enjoy 3-Port 2.0 Hub Use the included Micro-USB Cable to connect to Power source. the 3 USB Port can be safely use for Mouse, Keyboard, USB Drive Convenience Built-In Stand The docking station is designed with a stand so that you can watch videos on your smartphone or tablet while charging or transfer Convenience of Build in Micro-USB Cable Connect it with your phone or tablet. Instantly switch between OTG or Charging Function without disconnecting and reconnecting your device Unique Card Reader Hub Enjoy our 42 in 1 Card Reader, you don"t need to purchase different card reader anymore. You can read/Write into Tablet Smartphone instantly. Specifications: Plug-and-play,no need external power supply. Blue LED flashes when OTG card reader are in reading and writing process. Red LED indicates charging status. OTG card reader/Hub and charging function can be switched by button switch. Power source input interface of micro USB female socket support DC 5V input. Chip built in can distinguish setting charging mode of all kinds of smartphone,tablet automatically and rapidly charge.Rapid charging speed (1500mA) is faster 3 times than normal charging speed (500mA). Support two-way transmission data between the smart phone/tablet and CF/MS/SD/Micro SD cards. Support memory card: (1):SD/SDHC/SDXC/EXTREME SD/EXTREME II SD/EXTREME III SD/ULTRA SD/ULTRA II SD/ULTRA II SD P PLUS/SD-ULTRA-X/ULTRA SPEED SD/SD PRO/SD ELITE PRO/HS SD/MMC/MMC 4.0 (2):Micro SD/micro SDHC/micro SDXC (3):MS/MS Pro duo/MS MG Pro/MS MG Pro duo/HS MS MG Duo/HS MS Pro duo (4):CF I/CF II/CF 3.0/CF 4.0/EXTREME III CF/EXTREME CF/ULTRA II CF/HS CF/XS-XS CF/CF ELITE PRO/CF PRO/CF PRO II. Included 3 Feet Micro-USB Cable for power source