Well i just installed a few 750g drives over the weeked, and I had to use adapters. As most cases have more 5.25 bays than 3.5 inch. I couldn't help to wonder why they don't make drives 5.25 anymore. At least the high end ones. I would not mind, like a 2.5tb drive if it was 5.25. Heck, even a full height. Why not, I don't care about physical size, I care about capacity.