Different technical limitations prevent the popularity of hard disks with three teras-byte ; therefore producers for long were prepared for this step. Traditional HDD with 3 tb volume propose company WD and Seagate. Soon to this club can enter Hitachi, since SSD with 3 tb volume are already mentioned on the company site .
In the series deskstar 7K3000 the hard disk with 3 tb volume has the rotation speed 7200 rp/min, a buffer with 64 mb volume and SATA-600 interface. A modest according to the energy and noise characteristics series deskstar 5K3000 also contains HDD with analogous volume, but in this case it has a modest rotation speed (5400 or 5900 rp/min), and also the reduced to 32 mb buffer. In these series will appear hard disks with the volume two or 1.5 tera-byte.