Like cruzinforit, I have 2 x Toshiba 3TB in my server as well. One was shucked from a good deal on an external USB 3.0 about 18 months ago and the other was purchased in January. Weirdly enough, the external reports as 5940rpm and has an average transfer speed of 96MB/s and the newer one is 7200rpm but only reports as 93MB/s according to HD Tune. I can attest that they are definitely nowhere near as fast as the 2TB Seagates that I have had in there for the last 3 years; 145-148MB/s according to HD Tune but they are obviously faster in real world tests, too. If it weren't for durability concerns/reputation I would be filling my server with those.