How to upgrade iMac 2019 from fusion HDD to SSD (4k) - YouTube
maxupgrades.com: Single SSD Drives kit for iMac 27 inch 2012 Models with SATA Blade SSD Module / Heatsink/ Power Cable and DATA Cables for [SSD + HDD] with iMac Adhesive LCD Tape
Imac SSD Upgrade service Bolton Manchester London UK SSD Drive Upgrade 500GB SSD