2013 iMac teardowns reveal SSD slots, soldered-in CPU in the 21.5” model | Ars Technica
Amazon.com: USB C Hub for iMac 24 inch 2021, Minisopuru USB Hub Adapter Support M.2 NVMe SSD, iMac USB Hub, 7 in 1 iMac Accessories with USB C 10Gbps, USB A 3.2,
Install/Upgrade a PCIe SSD in a 21.5-Inch iMac (2019)
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New iMac 2017 shows SSD as SATA | MacRumors Forums
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New York Computer Help - Apple laughs at you if you want to upgrade your iMac. Buy a new one they say. Not us! #ssd #upgrade #imac #noproblem #speed #rules | Facebook