WD Elements 4TB Contains Blue Drives

Hi all, continuing on from that other thread (the 5TB containing Reds), I bought a WD elements 4TB to replace one of the drives in my server and upon tearing it apart it contains a WD Blue 4TB drive model number WD40EZRZ. Street price of the drive is at least $200 and they are of higher quality than Greens but not rated as high as Reds. I think it will go great in the server after I use wdidle to set the time out to 5mins.

http://imgur.com/wa15ICH

Anyway just thought someone might want to know.