Last week it announced a 640GB S2 portable hard drive and today, Samsung has stepped up to introduce to the world a 2.5-inch internal HDD of the same capacity. Part of the Spinpoint M7 family, the new 640GB drive features two 320GB platters, a SATA 3.0 Gbps interface, a working speed of 5400 RPM, 8MB of cache memory, and technologies like SilentSeek and NoiseGuard that minimize noise-levels during drive operation.

"With the addition of the new internal drive to the M7 series, our customers will get the best viable combination of density, performance and reliability that is essential for high-end notebooks and mobile applications," said C.H. Lee, vice president, Storage sales & marketing, Samsung Electronics. "Samsung maximizes the density level of its platters to enhance the reliability and stability of its internal hard drives."

The halogen-free 640GB M7 will start shipping in Europe and the US from mid-September and cost about $150.