Toshiba have unveiled a new lineup of 2.5" mobile SATA HDDs this week, with two out of the bunch being especially noteworthy.

One of them (the MK3252GSX) tops the storage capacity limit for 2.5" drives with a huge 320GB, whilst the MK2049GSY is a 200GB drive which is one of the quickest 2.5" drives released to date as it has a 16MB memory buffer and spins at the same speed as mainstream desktop drives, 7200RPM.

For further details on the new lineup you can grab Toshiba's PDF formatted press release here.

IRVINE, Calif., August 20, 2007 - Toshiba Storage Device Division (SDD), the industry pioneer in small form factor hard disk drives (HDDs), today announced the world's first 320GB1 2.5-inch HDD, as the lead product in a new series of 5,400 RPM notebook drives. The company also expanded into the high-end 7,200 RPM performance class with a family of products offering up to 200GB capacity.

Toshiba's new 5,400 RPM 2.5-inch HDDs feature capacity points from 80GB to 320GB, using both 120GB-per-platter and 160GB-per-platter designs in the MK-46GSX and MK-52GSX families, respectively. The high-end 7,200 RPM MK-49GSY series features capacity points of 80GB to 200GB. All three families support the Serial ATA interface at a 3.0 Gbps data transfer rate, and free-fall sensor options are available on select models.