Seagate today introduced the Momentus Thin hard drive, the world’s thinnest 2.5-inch hard drive for ultra-portable and entry-level laptops. The 7mm thin drive is 25 percent slimmer than traditional 9.5mm notebook hard drive, but it offers 5400RPM spin speed, SATA 3Gbps interface and 8MB cache.

“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,” said Dave Mosley, executive vice president of Sales, Marketing and Product Line Management at Seagate. “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 Momentus Thin drive features two capacity points – 250GB and 160GB. Seagate will start shipping the drive in January 2010.