Kamyifook 7 Ports Super Speed USB 3.0 HUB with Micro USB 2.0 Otg, Compact Design for Your Microsoft Surface, Ultrabooks and Macbook A 7-in-1 usb hub, and OTG device. It is widely used at home and office. With OTG cable video and image data in USB devices can be easily transfered to other USB devices such as smart phone and tablet computer Compatible with all Windows/Mac/Linux systems Classical design and portablepolishing surface treatment, simple and small, easy to carry