The most capacious 1.8-inch hard drive on the planet now checks in at 320GB, says Toshiba, who just introduced a new line of tiny HDDs

Toshiba's targeting thin and light mobile PCs and portable external HDD contraptions with its new storage series, which also includes two other models sized at 160GB and 250GB. All three drives sport a perpendicular magnetic recording head, efficient power consumption, a high level of durability, and quiet seek operation, Toshiba says.

The new drives come equipped with a SATA interface and spin at 5400RPM. All three models also include a 16MB buffer. Combined with improvements to areal density, Toshiba claims you can expect data transfer rates to improve by 15 percent over previous drives.

Toshiba's tiny drives will start mass production in December. No word yet on price.

Image Credit: Toshiba