Top-Longer Aluminum USB 3.1 Type C USB-C to Multiple 4 Port USB 3.0 Hub Adapter for Apple MacBook 12 inch and Other Type-C Supported Devices (Gray) Extra Ports: Turn one USB-C port into four USB 3.0 ports. Premium Ergonomics: Ultra-compact, easy to carry and durable. SuperSpeed Data: Up to 5 Gbps data speeds let you transfer an HD movie in seconds. USB-C Compatible: Works with the latest computers and smart devices with USB-C ports. Unibody aluminum exterior is sleek yet durable, effectively resisting scratches and wear from repeated plugging in.