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iMac 21.5 and 27-inch A1418 and A1419 Late 2015 through 2017 Airport WiFi bluetooth card (BCM943602CDP) - Macparts
Amazon.com: Satechi Aluminum Type-C Clamp Hub Pro with USB-C Data Port, USB-A 3.0 Data, Micro/SD Card Reader - Compatible with 2020/2019/2017 iMac & iMac Pro, Does Not Fit 2021 iMac (Silver) :
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Amazon.com: 2017 Apple iMac with Intel Core i5 (21.5-inch, 8GB RAM, 1TB Storage) - Silver (Renewed) : Electronics
Apple 27" iMac Pro with Retina 5K Display (Late 2017)
Photos of Likely 802.11ac 'Gigabit Wi-Fi' Card From Next-Generation iMac Surface - MacRumors
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