Corsair has announced new additions to its Force Series 3 and Force Series GT range of solid-state drives. Touting these as the world's first 90GB SATA 6Gb/s devices, the Force Series GT offers read speeds of 555MB/s and write speeds of 505MB/s, while the Force Series 3 is just slightly behind with read and write speeds of 550MB/s and 500MB/s.

Both drives use MLC (multi-level cell) NAND Flash memory chips, though the Force Series 3 is said to use asynchronous flash memory while the Force Series GT uses ONFI synchronous flash memory and is supposedly "particularly adept at reading and writing non-compressible data, such as video and music files."

A SandForce SF-2200 controller powers the new drives and the two of them offer a MTBF (Mean Time Between Failure) rating of 2 million hours.

The Force Series 3 drive is available now for $159, or about $1.77 per GB, and the Force Series GT for $199. They come bundled with 3.5-inch adapters for use in desktops and are backed by a three-year warranty from Corsair.