May 27, 2008 Following on from last year's 64GB solid state drives (SSD) with SATA II interface, Samsung has upped the ante by developing a 2.5-inch, 256 Gigabyte (GB) multi-level cell (MLC) based solid state drive using a SATA II interface, which it claims is the world’s fastest. With a sequential read speed of 200 megabytes per second (MB/s) and sequential write speed of 160MB/s, Samsung's MLC-based 2.5-inch 256GB SSD is about 2.4 times faster than a typical HDD. Samsung are also laying claim to title of the thinnest drive with the largest capacity to be offered with a SATA II interface - it measures only 9.5 millimeters (mm) thick, and has dimensions of 100.3x69.85 mm.
Through major advancements in proprietary controller technology, Samsung's new MLC 256GB SSD, besides being comparable in speed to an SLC-based SSD, also boasts reliability equal to that of SLC SSDs, with a mean time between failures (MTBF) of one million hours, while costing considerably less. Power consumption is also exceptionally low at 0.9 watts in active mode. In addition, the drive offers a sophisticated data encryption process that prevents data stored on the SSD from being accessed in an unauthorized manner, even after the SSD is removed from the PC.
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Samsung believe the development of the 256GB SSD will eliminate the barrier to SSD adoption in the marketplace and bring about a shift to thinner, smaller SSD-based laptops with significantly improved performance and greater storage – likening it to the change from the Sony Walkman to NAND memory-based MP3 players. Samsung is expected to begin mass producing the 2.5-inch, 256GB SSD by year end, with customer samples available in September. A 1.8-inch version of the 256GB SSD is expected to be available in the fourth quarter of 2008.