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Computers & Electronics :: iMac :: Apple iMac Retina 4K 21.5-inch 3.2GHz Six-core i7 (Early 2019) MRT32LL/A (BTO)
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Apple iMac with 4K Retina display (21.5-inch, 2015) review: Apple packs more pixels into its smallest iMac - CNET
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Apple iMac 21.5-inch 4K Review: Style and Power
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