Review on OWC 8GB (2 X 4GB) 1867 MHZ DDR3 SO-DIMM PC3-14900 204 Pin CL11 Memory Upgrade by Casey Narcisse

It took me a full year to realize that this memory was defective. This worked for a few weeks, after which I started getting a bunch of kernel crashes on my late 2015 iMac. I've tried every memory combination with and without my original Mac memory and I've always had crashes. They happened with such frequency that I kept hoping they would go away. It ended up being a huge pain and I almost bought a new computer for fear the computer would have other problems. In the end, not one of the four DIMMs was defective, but all of them. At least don't buy this RAM for your late 2015 iMac. I will not buy from this company again.