Apple iMac 27" 2017 Retina 5K 4.2GHz i7 500GB SSD 8GB RAM Radeon Pro 575 4GB #5 | eBay
Apple 27" iMac Pro with Retina 5K display Intel Xeon W 32GB Memory 1TB Solid State Drive Black MQ2Y2LL/A - Best Buy
How to upgrade RAM in the (Mid 2017) 5K iMac and save up to ~$900 [Video] - 9to5Mac
Apple iMac 27-Inch With 5K Retina Display (2017) Review | PCMag
How To: Upgrade 2017 5k iMac RAM to 64GB & Saved $840 | 2018 - YouTube
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
How to upgrade RAM in the (Mid 2017) 5K iMac and save up to ~$900 [Video] - 9to5Mac
Mac RAM Upgrade, Best iMac Memory Upgrade – Best Reviews
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
Apple 27" iMac with Retina 5K Display (Mid 2017) Z0TR-MNED43-BH