Come with me, back to a simpler time. It's 2015, and Apple's MacBook Pros are on the top of the world. The 15-inch Retina MacBook Pro was one of the best notebooks anyone could ask for. It had everything–USB-A ports, Thunderbolt 2, an SD card slot. Everything was great, until—smash cut to late 2016, when Apple did a major redesign of the entire Pro lineup. Suddenly, USB-C and Thunderbolt were the only ports for charging and input, throwing users into an awkward spot.

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