The 2013-era Mac Pro has been totally redesigned with a new, cylindrical chassis and vastly upgraded internals that have been designed to last for 10 years. The IO panel of the Pro is very busy. There are four USB 3.0 and six Thunderbolt 2.0 ports (can take up to six devices per port, so technically 36 maximum devices). Some other ports are HDMI-out, two gigabit Ethernet plugs, WiFi 802.11ac, Bluetooth 4 and 3.5mm audio in and out ports.
The cylinder will be the first ever Mac to ship with dual AMD FirePro GPUs and support 4K displays. Also, the machine is 1/8th the volume of the current Mac Pro.
