SATA 7200 rpm drives are our standard high bandwidth hard drive storage options; most workstation models are also available with high performance 10K rpm rotation speeds. Storage capacities for the 7200 rpm drives range up to a massive 3.0TB.
Most of the 7200 rpm HDDs are 3.5" drives. The one exception is the new 500GB SATA 7200 rpm SED drive which is 2.5" form factor. The 10K rpm drives are SFF (Small Form Factor, 2.5") drives (available bare and in 3.5" frames); the appropriate choice depends on drive bay availability in a chassis.