"When it comes to traditional platter drives, the most innovative company on the block is Seagate. Seagate has many firsts under their belt, more than what I could possibly go into in an article about a single drive. Adding to the long string of innovative products is the new Seagate Constellation.2 Series of products.
With a maximum capacity of 1TB and a small 2.5" form factor, the Constellation.2 is already breaking new ground. On top of that, Seagate wasn't content with just a SATA or SAS interface, the Constellation.2 is available in both SATA 6G and SAS 6G. As you might have guessed, the new 2.5" Constellation.2 is a nearline enterprise drive, but unlike the norm in this field the new SATA and SAS Constellation.2 is optimized to be power efficient, using only 3.9 watts at idle."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips