I was able to get a 1TB PCIe SSD from a MacBook Pro (2013) and put it in my 27” iMac (2013) - everything works great (although have an assortment of various Apple screws around for holding the blade in place, it is spring loaded and wants to to pop-up!)
+
I was able to get a 1TB PCIe SSD from a MacBook Pro (2013) and put it in my 27” iMac (2013) - everything works great. Although have an assortment of various Apple screws around for holding the blade in place, it is spring loaded and wants to to pop-up!
+
+
+
+
Lastly, if you put in both a PCIe blade ANDa SATA SSD (using the OWC in-line SATA thermal sensor) and [https://support.apple.com/en-us/HT207584|format it as a CoreStorage Fusion Drive] in High Sierra when you go to upgrade to Mojave it will balk and say you have an “Unsupported CoreStorage Configuration”. The trick is to FORMAT the Fusion Drive as APFS with Disk Utility when booted with a [https://support.apple.com/en-us/HT201372|bootable Mojave USB]. Yes this '''wipes out the data''', ''make a backup''! The Mojave installer though will now happily install on your PCIe Blade+SSD Fusion Drive
This page is a GREAT resource for figuring out Apple PCIe/SSD blades:
https://beetstech.com/blog/apple-proprietary-ssd-ultimate-guide-to-specs-and-upgrades
I was able to get a 1TB PCIe SSD from a MacBook Pro (2013) and put it in my 27” iMac (2013) - everything works great (although have an assortment of various Apple screws around for holding the blade in place, it is spring loaded and wants to to pop-up!)