The vertical stand dock keeps your laptop neat and clean, stay organized, connects an external monitor along with keyboard and mouse, makes your laptop computer becomes a desktop luxury workstation, Apple calls this feature - closed-clamshell mode, which is also available to some other laptop computers. The 90 degree usb adapter 3.1 type C left / right orientation USB c adapter convert enables you to connect a type c USB peripheral devices. Certified by CE & RoHS with 18-month Warranty and friendly customer service.