I had to RMA one of the WD15EADS-002SB0 drives in my DS409+ due to a high error read rate.
WD is replacing it with a WD15EARS-00Z5B1. Never heard of that model, but it is listed on the WD site as a Green drive and I can only assume it is a newer version of the WD15EADS.
Will post my results with the LCCs etc once it arrives and I get it going in my DS409+. If anyone an experience with this drive in a Syno box, post up.
Hardware: DS409+ DSM: 4.2-3202 Storage: 3 x Hitachi HDS722020ALA330 in RAID5 Misc: 2 x TrendNet TV-IP410W