Upgrade WD4000A4NC Nas Box HD's

We are looking to upgrade the NAS box we have with 4 new 4TB WD Red WD30EFRX 3TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drives. Is this feasible. I have heard that only green drives work in the Box and that firmware updates are not recommended. Any help would be appreciated. Thanks

Hello,

The WD ShareSpace enclosure is designed to support only WD Caviar® Green™ hard drive assemblies.

Check page #177 of the owner’s manual.

http://www.wdc.com/wdproducts/library/UM/ENG/4779-705006.pdf

@HDKnows: Can this enclosure handle new 3TB or 4TB green drives?