Seagate Technology has launched Momentus Thin drive, a 2.5-inch hard disk drive for portable and entry-level laptops, netbooks, backup devices and consumer electronics.

The company claims that the new drive is 7mm in height and 25% slimmer than traditional 9.5mm 2.5-inch laptop hard drives. It offers original equipment manufacturers (OEM) and system integrators lower cost-per-gigabyte storage than solid state and 1.8-inch drives.

According to Seagate, the Momentus Thin drive provides thin storage for netbooks and slim laptops. It features two capacity points – 250GB and 160GB, an 8MB cache, a Serial ATA 3Gb/second interface and 5400RPM spin speed.

The Seagate Momentus family includes 5400RPM and 7200RPM hard drives in the 9.5mm height with feature set including self-encryption, with up to 640GB of capacity, fast 3Gb/second Serial ATA interface speeds, cache sizes of 16MB and hard drive shock-tolerance, acoustics and reliability specifications for entry-level, mainstream and high-performance laptops, the company said.

Dave Mosley, executive vice president of sales, marketing and product line management at Seagate, said: “The Momentus Thin drive promises to help computer makers differentiate on mobile-computing form factor and better compete in the fast-growing markets for thin laptop PCs and netbooks.

“Seagate is committed to helping its OEM and system integrator partners meet market demand for thinner laptop PCs and plans to expand storage capabilities for thin laptops as demand for these slimmer models continues to grow.”

The drive is expected to ship to Seagate’s OEM and integrator partners in January 2010.