iClooly Aluminum Stand and 4 Port USB 3.0 HUB for MacBook Air, MacBook Pro, New MacBook with Removable USB Type C Adapter 2 in 1, computer stand and high speed 4 port USB 3.0 HUB for MacBook Air, MacBook Pro, MacBook, Laptop, Notebook (For Laptop and Notebook, please make sure that your laptop is equipped with an USB port on the left side of your computer - cable length: 9 inch) Sleek Aluminum Design with high speed USB 3.0 port. Transfer Rate : Up To 5Gb/s Adds four additional USB ports and allowing you to connect USB devices including digital cameras, phones and more (note: External hard-drives should be connected to an external power source) Plug and play - does not require any software, drivers, or complicated installation process. Includes a removable USB Type-C Adapter (Effective 9/16/15). Backwards compatible with USB 2.0, 1.1