How to Install/Upgrade the PCIe SSD in a 27-inch iMac (Late 2014 - Mid 2015) on Vimeo
Mac Mini (late 2014) PCIe SSD & flex cable install for OS X Fusion Drive [Teardown & Reassembly] - YouTube
Amazon.com: Sinobright Original 128GB PCI-e SSD Replacement for MacBook Pro Late 2013 - Mid 2014, MacBook Air Mid 2013 - Early 2014, iMac Late 2013 - Mid 2015, Mac Mini Late 2014 (Bulk, No Retail Packaging) : Electronics
How to Add An SSD To The 27" iMac (Late 2015) - iFixit Repair Guide
How to give your 2012 or 2014 Mac mini a performance boost by replacing the hard drive with an SSD | AppleInsider