Pros: It gets 3 stars instead of 1 because the ram does work at rated 3200mhz, cas16, arrived on time with acceptable packaging, and passed memtest. It would be 4 stars if I wanted desktop memory because I would have gone with a slightly cheaper 2x16gb kit and had room to add more later vs this 4x8gb kit.
Cons: Bought this for a micro server build and explicitly wanted ECC. The "specifications" and search filters on Newegg said it does, but these modules do NOT. I should have double checked with Kingston's site before placing the order as Kingston makes no mention of ECC for these modules.
The seller and/or Newegg need to correct the specifications and filter so this does NOT show up under ECC - Yes.
Overall Review: I kept this and upgraded my son's PC as returning things around the holidays is horrible, return cost would make up the difference in price from this kit and the 2x16gb kits, and anything bought at this point has slim chance of making it by the time I need it.
I went with a Nemix ram kit now for the server which arrived with Micron ECC 3200 chips and has now passed 48h burn-in/memtest and prime95 memory load tests. Some people have had issues with Nemix, but time will tell. The Nemix 8x 32gb ddr3-1866mhz ecc rdimms (Samsung chips) I bought last year are still working perfectly in my VM server.