You don't have to use an Ethernet crossover cable to connect to other Ethernet devices. The connected device can be a 10Base-T, 100Base-TX, or a 1000Base-T device, and the port automatically detects which type of device is connected. The Ethernet port also supports jumbo frames. You can use these to connect an Ethernet cable from a cable or DSL modem, hub, switch, or router, or to connect to another Mac computer. There are two built-in 10/100/1000 Gigabit Ethernet ports. HDMI audio and video output using a third-party Mini DisplayPort to HDMI Adapter.This supports the 30-inch Apple Cinema HD Display. Dual-Link DVI output using Mini DisplayPort to Dual-Link DVI Adapter.VGA output using a Mini DisplayPort to VGA Adapter.DVI output using a Mini DisplayPort to DVI Adapter.Mini DisplayPort output using a Mini DisplayPort to Mini DisplayPort cable.Mac Pro (Late 2013) Thunderbolt ports support the following technologies as well. Thunderbolt 2 is backward and forward compatible with Thunderbolt devices, allowing Thunderbolt devices to connect to Thunderbolt 2 ports and Thunderbolt 2 devices to be connected to Thunderbolt ports at Thunderbolt speeds. Thunderbolt supports up to six devices per port for a total of up to 36 devices connected to your Mac Pro. Each port supports up to 20Gb/s of data throughput using channel bonding. The Mac Pro (Late 2013) features six Thunderbolt 2 ports connected using three independent Thunderbolt 2 controllers. Thunderbolt is a revolutionary I/O technology that supports high-resolution displays and high-performance data devices through a single, compact port. For complete information on using USB 3 devices, see Using USB 3 devices on Mac computers FAQ. Use USB 3 cables to take advantage of this functionality. USB 3 devices can use up to 900mA of power (compared to USB 2 device which can use up to 500mA). USB 3 (also known as 'SuperSpeed USB') can transfer data up to 5Gbps. The USB ports use USB Type A connectors which have four pins each. You can connect USB 3, USB 2, and USB 1.1 devices to these ports. The enclosure must be on for you to be able to turn on the computer. Keep the system latched during normal use. This latches the enclosure to the system core. Digital output devices are not supported on this port. iPhone headsets including mic and inline controls are supported. If the headset has a microphone, it will appear in System Preferences > Sound > Input. Headphones will appear in System Preferences > Sound > Output. When you plug in headphones to this port, sound is redirected from the internal speakers to the headphones. The headphone out port is a 1/8' minijack that supports headphones and headsets. This port does not support headsets or microphones. You can find audio devices you connect to this port in System Preferences > Sound > Output. The audio line out port is a 1/8' minijack that supports stereo analog audio and digital S/PDIF fiber optic cables. All the ports and connectors shown here are located on the Input/Output (I/O) panel.

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