• Thunderbolt/Thunderbolt 2/Thunderbolt 3 port: The Thunderbolt port (and its faster descendents, Thunderbolt 2 and Thunderbolt 3) is the expan- sion racehorse of today’s MacBooks. It offers the fastest data transfer rates and the ability to add all sorts of peripherals, from external hard drives to monitors to wired Ethernet connections. (A peripheral is another silly techno- nerd term that means a separate device you connect to your computer.) Thunderbolt 3 devices are somewhat more expensive than their Thunderbolt 2 and USB cousins, but prices are dropping as more Thunderbolt 3 peripher- als arrive on the market. Although Thunderbolt-compatible monitors are available, they’re significantly more expensive than a standard display. Luckily, you can also buy an adapter for this port that allows you to send the video signal from your laptop to another VGA, DVI, or HDMI monitor.

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