Apple iMac Retina 4K 21.5-inch, 5K 27-inch 2019 Technician Guide Service Manual | eBay
Apple 21.5" iMac with Retina 4K Display (Mid 2017) MNDY2LL/A B&H
Apple iMac 21.5-Inch With 4K Retina Display (2017) Review | PCMag
Review: The 2019 21.5-inch iMac 4K is iterative, not transformative | AppleInsider
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Apple iMac (27-inch, 2017) review: Apple doesn't mess with success - CNET
iMac review: Pricing, Specifications, and Features | Macworld
Willhom LVDS LCD Display eDP Embedded Display Port Cable (60/60-Pin) 923-01669 Replacement for iMac Retina 4K 21.5 inch A1418 (Mid 2017) A2116 (Early 2019)
iMac (21.5-inch, 2017) - Technical Specifications
Identify the ports on your Mac - Apple Support
iMac 21.5-inch Late 2015+Retina 4K 2015 Service Guide to Repairing PDF file | eBay