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A full 220W power supply provides ample power even under heavy loads. There is also plenty of power to run the chassis exhaust fans and the drive cage fans. The well ventilated chassis helps to keep the drives cool and running on peak levels.
Pros: It works with several different RAID options as well as pass-thru which allows it to function as a simple 5 bay enclosure if you just want that. Using it in RAID with Parity (Raid 5) with 5 WD 1TB 1001FALS with TLER enabled on them (strongly recommended). Recognized the disks and it was relatively simple to create the array and quick NTFS format it. To build the Array took 14 hours in my case. I've had NO issues with the Raid dropping drives or it failing randomly. And that is after transferring 3 GB of data and using it for streaming video/Music. Running with 32kb chunk and allocation unit size. PCI-E Controller has two estata ports so you can run a 2nd box. My second has been ordered and is on it's way. Adequate cooling with the fan in my warm room. It comes with all the screws for 5 drives.
Cons: Plain design with a bay door that covers the green activity lights. To open the bays, you slide the chrome piece to the right, something not stated in the manual and I was having trouble figuring it out. Easy once you know.
Overall Review: If using consumer HDD make sure you enable TLER or whatever equivalent setting for the drives. Otherwise the drives may fall out of RAID under heavy I/O. Use Advanced Raid Settings under preferences, and turn on Check Pointing. This is a must if you want to power cycle the box. Without check pointing when I power cycled I got 15 hours to rebuild redundancy with the raid running in reduced mode. With check pointing option on, it was 4 minutes to rebuild!!! So if you plan on turning the box off when not in use, I strongly recommend turning on check pointing.