This is not officially supported.
Some users have already tried alternative options with another model the DX4000 on the following link:
http://community.wd.com/t5/WD-Sentinel-Products/Adding-RAM-on-a-Sentinel-DX4000/td-p/473640
This is not officially supported.
Some users have already tried alternative options with another model the DX4000 on the following link:
http://community.wd.com/t5/WD-Sentinel-Products/Adding-RAM-on-a-Sentinel-DX4000/td-p/473640