1. Multi-interface expansion: The Type-C expansion dock has 9 interface expansion functions, including multiple interfaces such as HDMI video, Gigabit Ethernet port, PD fast charging, and USB, to meet various data transmission and connection needs of computer users. 2. HDMI high-definition output: The HDMI interface of the expansion dock supports 4K high-definition resolution video output, allowing users to enjoy clearer and more delicate visual effects. 3. Gigabit Ethernet port: Built-in high-speed Gigabit Ethernet port, quickly connected to the network, stable and fast data transmission, to meet the high-speed network needs of users. 4. PD fast charging technology: Support PD fast charging technology, which can provide fast charging for computers and other devices, saving time and convenience. 5. Strong compatibility: The dock perfectly supports computers with Type-C interface, including Apple MacBook, Dell XPS, HP Specter, Google Chromebook, etc. It is easy to use and compatible with various devices such as laptops and smartphones. 6. Small and light: the expansion dock is small in size and light in weight, very convenient to carry, and users can use it at any time.