Pros: * SAS 6Gb/s, 128MB cache, 4.16ms avg latency, MTBF of 1.4 million hours and 5-yr warranty! * Excellent price/performance ratio. In my research so far, it is the best value 1TB SAS drive in the 7200rpm class. * Self-Encrypting Drive (SED), but it does not force you to use this feature as long as your SAS RAID card has no compatibility issue with SED. I am assuming it works for all Areca SAS RAID cards with firmware 1.51 or later. * Unlike consumer SATA drives, this is an Enterprise SAS drive, so it comes with detailed documentation. And I no longer have to worry about tweaking TLER or NCQ settings (which mostly concern consumer SATA drives) on my RAID card. * Compatibility: This is my first SAS drive. I was a little worried at first, but it works on my Areca ARC-1680ix-12 with firmware 1.51 in Supermicro CSE-M35T-1B enclosures and also a SGI Rackable SE3016 16-drive chassis. In fact, I can mix this 6GB/s SAS drive in the same RAID volume/chassis as my other cheap 3GB/s SATA drives - though not for long as I am migrating my raid set / volume from 3Gb/s consumer SATA drives to this 6Gb/s SAS enterprise drive. This compatibility (with Areca, other 3Gb/s SATA drive, and 3Gb/s enclosure/backplane) allows flexibility, though I believe the credit is due mostly to the RAID card.

Cons: None so far.

Overall Review: For some unknown reason, it is priced noticeably below the other Seagate SAS and SATA 1TB drives in the same Constellation ES.3 line! Same performance, plus SED (though I don't use it). Perhaps the price is due to not many people know if it is compatible with their RAID card or not (and you do need a RAID card that supports SAS).

Pros: It works on my ASUS P6T Deluxe V2 using 7-7-7-20-1N at 1.5V. Standard DRAM frequency (DDR3-1333MHz). I got this (3 x 2GB) plus 3 Mushkin Enhanced Silverline 991770 (3 x 4GB) - I was skeptical, but it works! Now I have a total of 18 GB.

Cons: No Con yet.

Overall Review: It turns out ASUS P6T Deluxe V2 support a mix of 2GB and 4GB - as long as the size within each triple channel is the same. This is an economical way to upgrade my memory - this means I can go from 6GB (3 x 2GB) to 12GB (6 x 2GB) to 18GB (3 x 4GB + 3 x 2GB) and (in the future) to 24GB (6 x 4GB). What a nice upgrade path.

Pros: It works on my ASUS P6T Deluxe V2 using 9-9-9-24-1N at 1.5V. Standard DRAM frequency (DDR3-1333MHz). I got 3 of these (3 x 4GB) plus a CORSAIR XMS3 6GB (3 x 2GB) - I was skeptical, but it works! Now I have a total of 18 GB. It turns out ASUS P6T Deluxe V2 support a mix of 2GB and 4GB - as long as the size within each triple channel is the same. This is an economical way to upgrade my memory - this means I can go from 6GB (3 x 2GB) to 12GB (6 x 2GB) to 18GB (3 x 4GB + 3 x 2GB) and (in the future) to 24GB (6 x 4GB). What a nice upgrade path.

Cons: No Con yet.

Overall Review: The RAM did not show up at first. It turned out I still have 7-7-7-20-1N in BIOS for my CORSAIR XMS3 6GB. Everything works after I changed my BIOS. Lesson learnt: please remember to set the BIOS timing before you plug in the RAM.