Years ago we could have never imagined this kind of storage space in a single drive, 8 Terabytes! Seagate is now shipping these drives in a 3.5″ form factor for only $260 USD. It is a bit slower than many SATA drives at 5900 rpm and 150 MB/sec. The average SATA is 7200 rpm and SSDs have average speeds over 500 MB/sec.