Feature: 1. Wide Applications Support for keyboard, mouse, U disk, game pad and so on. 2. High Speed Transmission USB 3.0 interface allows for fast speed transmission. 3. Wide Compatibility Compatible with iPhone devices with OTG function. 4. Plug and Play Fast recognition. No driver needed. 5. Smooth Pull and Plug Tight port prevent U disk from loosing. 6. Long Service Time The port is anti rust and antioxidant. Specification: Connecting with U disk read files from phone, solve memory shortage and release storage space. Connecting with keyboard chat with keyboard and speed up typing. Connecting with mouse operate phone like PC Connecting with digital camera share photos taken by camera at once. Features: Wide Applications Support for keyboard, mouse, U disk, game pad and so on. High Speed Transmission USB 2.0 interface allows for fast speed transmission. Wide Compatibility Compatible with iPhone devices with OTG function. Plug and Play Fast recognition. No driver needed. Smooth Pull and Plug Tight port prevent U disk from loosing. Long Service Time The port is anti rust and antioxidant. Specification: Color: Golden/Silver(optional) Suitable OS: For IOS9.2~IOS10.3 Item size: 8.8 * 1.7 * 1cm / 3.46 * 0.67 * 0.39in(L * W * H) Item weight: Approx. 15g / 0.53oz Package list: 1 * OTG Cable Package List: 1 * OTG Cable