It is easy and convenient to use this expansion dock because it is plug and play and widely compatible. Fast charging is supported by the 87W PD port. This expansion dock features powerful chip, supporting 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 ABS material. The length of this product is 11.5cm, the width is 2.8cm and the height is 1cm. This expansion dock is compatible for laptop, keyboard, mouse, U disk, printer, mobile hard disk and so on. Item Name: Docking Station Material: ABS Interface: Type-C 3.1 Expansion Ports: 1 x USB3.0, 1 x USB2.0, 1 x HDMI-compatible, 1 x SD-Card, 1 x TF, 1 x USB-C PD Transmission, 1 x USB-C PD Charging HDMI-compatible 2.0: 4K30Hz 2K60Hz 1080P Power Output: 5V-20V Current: 3A-5A Power: 15W to 100W USB3.0 Transmission Speed: 5Gbps USB2.0 Transfer Speed: 480Mbps PD: 87W Features: Multifunctional, Fast Transmission, Lightweight Size Details: L: 11.5cm/4.53", W: 2.8cm/1.1", H: 1cm/0.39"(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