Specifications: For ALL USB-C Charged Devices You can use a compatible higher wattage power adapter without issue, but it won't make your computer charge faster or operate differently. The USB-C power adapter will provide only the power needed by your device. If you use a power adapter that is lower in wattage than the adapter that came with your device, it won't provide enough power to your computer. Package included: 1 x 30/61/87W Power Brick OR USB-C Cable Only 1 x AU Plug ACMA & ESSS Registered Responsible Supplier Number : E8888 Title: Mac 30W, Mac 61W, Mac 87W, USB-C Cable Only