Chosen Solution

this SSD [linked product missing or disabled: IF188-090-1] compatible with my Imac 27 3.2 GHz late 2013?

Sorry no. The late ‘13 iMac’s & Mac Pro systems use a M.2 PCIe SSD. So far Apple is the only supplier of these.

I don’t know if this is going to help, but I bought the one in the picture (1TB) from an eBay Mac seller and it worked.

I purchased one of these and it worked fine on my late 2013 14,2 27" iMac i was able to create a fusion drive with the standard drive utility in OS X 10.10.4 install

The Ebay ad contained this information Apple OEM SanDisk SDNEP (655-1837D) 128GB with PCIe Interface This will work in a MacBook Air Mid 2013 and 2014 This will work in a MacBook Pro Retina Late 2013 to 2014 13 and 15 inch Also will work in the new iMac’s SSD slot