This expansion dock is plug and play and widely compatible, which is easy and convenient to use. The 100W PD port supports fast charging. Featured with powerful chip, this expansion dock supports high-speed and stable data transmission and read and write function. The high resolution up to 4K supports HD-compatible image quality. It is constructed of zinc alloy material. The length of this product is 11.5cm, the width is 4.4cm and the height is 1.2cm. This expansion dock is compatible for laptop, keyboard, mouse, U disk, printer, mobile hard disk and so on. Item Name: Docking Station Material: Zinc Alloy Interface: Type-C, Expansion Ports: PD Fast Charging 100W, HDMI-compatible 4K, USB 3.0 x 3, SD 2.0, TF 2.0, USB C2.0 Read Speed: 140 MB/S Write Speed: 100 MB/S Features: Multifunctional, Fast Transmission, Lightweight Size Details: L: 11.5cm/4.53", W: 4.4cm/1.73", H: 1.2cm/0.47"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Docking Station