Features: brand new and high quality This product is a USB3.1-GEN2(10gbps) portable cube, which can be accessed with a USB-C data cable. Two USB-C interfaces and one USB-A interface are used for data transmission, and the highest rate can reach 10gbps. High quality aluminum materials are used to ensure high durability and first-class experience, perfectly matches your high quality laptop. No need to install drivers, hot swap support, efficient and convenient. It supports a one-stop connection of a variety of external devices (such as u disks, gamepads, mobile hard drives, mouse buttons, printers, etc.), and also supports simultaneous reading of the TF/memory card. Specifications: Material: Aluminum alloy Multifunctional USB C docking station: 2 x USB-C 3.1 gen2 + USB 3.1 gen2 + with TF/memory card slot Applicable models: type-c equipment System support: systems up for microsoft for windows xp, systems up for linux fedora fc8, systems up for mac os 10.6.2 Product size: approx.94x30x16mm/4x1.2x0.6in Package Includes: 1PC x Type-C Extension Dock note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!