Apple’s new line of MacBooks feature only one port – it’s called a USB-C . Roughly the size of a micro USB, it performs many of the same function sthat port does on most Android devices – it’s the charging cable and can also be used to power a peripheral. It can also be used to transfer data and to output a video signal. According to Apple this port takes the place of power, USB, display, HDMI & VGA ports and is 1/3 the size of a standard USB port.
If you want to plug a device with another type of connection in to your new MacBook, you’ll need an adapter. This probably means the end of Thunderbolt cables for desktops and laptops and maybe lightning cables for iPhones and iPads. The USB -C connection is small enough to work with those devices.