iMac Intel 21.5" and 27" (Late 2012-Early 2019) SSD Temperature Sensor
SSD Upgrade Kits for 27-Inch iMac (2012 - Early 2013)
OWC DIY General Servicing Kit for Apple 21.5" iMac OWCDIYIMAC212
Amazon.com: OWC 480GB Aura Pro X2 NVMe SSD Upgrade Kit Compatible with Select 27" and 21.5" iMac Models (Late 2013 - Current) : Electronics
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