I am a little bit confused. Where I can find a compatibility list for PCI-e for the 21.5 iMac late 2013 i7, 1GB 5400rpm?
Unfortunately i wasn't able to find such a list and things are a little bit vague. Apart from being M.2 connection is there any other factor that may be conflict with the iMac?
In case I find a compatible PCIe M.2, is there enough room to add as a second storage device (actually I am planning to host the operating system on the PCIe) and use as a second device the standard 1GB 5400 rpm drive.