1. Eleven, designed for USB-C / Type-C notebooks. 2. Three USB30 interfaces, 5Gbp/s high-speed USB3.0 interface, easy to transfer large movie files, reduce waiting time, external U disk, keyboard, mouse and other devices. 3. The HDMI interface has a resolution of up to 1080P, high-definition picture quality, as clear and smooth as a movie theater, without stuttering. 4. Type-C flash port, 60W high power, to meet the expansion of various external devices, can provide 20V/3A powerful power supply for notebook computers. 5. Independent audio port design, support headphone and microphone audio output, solve listening to music, recording music, voice calls and other problems. 6. SD/TF card socket, solve the problem of Macbook/Ultrabook cardless reading and fast reading, making data processing more efficient. 7. Fine sandblasted aluminum alloy shell material, corrosion resistant, easy to dissipate heat, scratch resistant, integrated, higher strength, more durable. 8. The top and bottom are designed with a non-slip silicone pad to ensure that the body is stable when used. 9. Expand Macbook/Superbook multi-interface, multi-screen simultaneous work, suitable for a variety of scenarios, such as: conference/speech, while watching movies, stocks/titles. Parameter: 1. Product net weight: 243g. 2. Product size: 280x90.5x18mm. 3. Transmission rate: 5Gbp/s. 4. Working voltage: 5V-20V. 5. Operating temperature: 0-45 degrees Celsius. 6. Thread length: 17 cm. 7. Meet USB-C/Type C interface specifications. 8. Material: aluminum alloy.