Memory Every component in the Mac Pro is optimized for performance. That includes a four-channel DDR3 memory controller running at 1866 MHz. Design Apple reorganized the architecture of the internal components as well as the entire enclosure of the Mac Pro. Thermal Core Rather than using multiple heat sinks and fans to cool the processor and graphics cards, Apple built everything around a single piece of extruded aluminum. Expansion Designed with built-in Thunderbolt 2, USB 3.0, Gigabit Ethernet, and HDMI 1.4 ports, the Mac Pro provides flexible, high-performance expansion. Wireless Access your network over three-stream 802.11ac Wi-Fi for high-speed wireless connectivity. For all your other wireless connections.