Features:1. The usb-c hub can supply USB power. This allows full speed laptops to reload SuperSpeed USB 3.0 and for SD and for micro SD at the same time.2. The hub transfers data to USB at speeds up to 5Gbps. It is fast enough to transmit high-definition movies in seconds.3. The USB port is incompatible for the Appl USB SuperDrive.4. It provides a simple connection to connect almost all screens or HD displays to support up to 4K resolution.Specification:Shell material: aluminum alloyColor: greyExtended full function port:1xHub ports1xLAN ports2xUSB 3.0 ports1xSD card slots1xType-C ports1xVGA portsCompatible systems:For OS X Yosemite, the highest 10.10.2For OS X EI Captain, until 10.11.5For home Windows10 up to 1511For Google browser, you can achieve 46.0.2490.82Compatible with USB devices:Suitable for laptop 2015 / portable 2016 data and chargingSuitable for portable 13 "/ 15''2016 / 2017 data and loadData and upload for Google Chromebook 2016Suitable for Microsoft Lumia 950 / 950xl data and loadingThe following model is perfect compatibility model, other models or mobile phones may be incompatible, software is constantly optimized, more product update and optimization will be updated as soon as possible. Computer:For Apple Macbook 13 inches, for Macbook ProFor HUAWEI: MATE BOOK X, MAte BOOK EFor Xiaomi Air 12.5/13.3 inches, Pro 15.6 inchesFor Lenovo: new Air 12 inch /YOGA 90013 inchFor ThinkPad_x1 Carbon 2017For HP Spectre 13/Envy 13For DELL: XPS13, XPS15For Razer: Blade Stealth spirit blade / lurking versionNote:Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.