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It has a 21.5-inch Retina 4K display with a native resolution of 4096 x 2304 pixels. So, it definitely supports true 4K resolution, not just 1920 x 1080.
Sorry, there was a problem. Please try again later.It does not have dedicated USB 2.0 ports, its USB-A 3.0 ports are backward compatible, and the Thunderbolt 3 (USB-C) ports can support USB 2.0 devices with the right adapters.
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