iFixit discovered yesterday that the RAM in the new 21.5-inch iMac with Retina 4K display was upgradable, and a day later is already offering a kit to take advantage of this fact.
The firm notes that the base model 3.0GHz machine tops out at 16GB of RAM, and that the only way to get 32GB direct from Apple is buy the more expensive 3.4 GHz version …
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