iMac 21-inch Retina 4K 2017 Service Technical Guide to Repairing PDF file | eBay
are the usb a ports on the 2020 27" imac … - Apple Community
Identify your iMac model - Apple Support
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) :
Apple 2017 5K iMac 27-inch review: The screen sucks you right in | Mashable
Pardon me but the new display made the old iMac a steal. Despite the speakers, camera, ports and extra 100 nits brightness. You get a fully working Mac for $200 extra, heck... :
Apple iMac with Retina 5K Display (2017) review | Digital Trends