Pros: Price and brand. Seems to be faster than Adaptec 6405 with 128MB cache, as my source drive gets saturated 100%, while destination is bouncing 40-80% (RoboCopy on 8 threads).

Cons: Can't get it to boot in a ThinkStation C20. If any drive is switched on, during boot time, it gets stuck with a cursor blinking in upper left corner. Same result if no drives are connected, but I try to get into configuration (Ctrl+C). After boot, if I power the drives on (using external SAS SansDigital for a backplane), the drives seems to be working fine.

Overall Review: Web support decent. When upgrading firmware, a must right after opening the box, select the one ending with IR to have RAID, or IT for JBOD alone.

Pros: Fast, large, easy to work with

Cons: I've got two of these working inside QNAP HS-210, and one of them was not passing built in smart read test. RMA with WD was a breeze.

Pros: Easy to setup Number of useful applications and functionalities (proxy server, media server, IOS mount) Fast and silent (as silent as your drives, I have two, one with 2.5" drives and one with 4TB WD RED, you can't hear the first one) RRTR (site to site two-way replication, works great over VPN) Built-in HDD health check Minimalist form Secure (allows for AD ACL as well) All mounting hardware included

Cons: Can't really think of any, except one minor thing of assisting in manual configuration of VPN routers for QNAP cloud access.

Pros: Price, case finish.

Cons: None so far

Overall Review: The case doesn't really feel that bad. It does what is supposed to do.