- Nearly as fast as an SSD.
- Generous capacity.
- Comparatively inexpensive.
- Slow write speeds in some tests.
The Seagate Momentus XT packs 320GB of capacity, with 8GB of SLC NAND flash, and a SATA 6.0Gbps interface. The Momentus XT features FAST Boot, which sets aside a small portion of the solid-state cache for data used during the boot process, where it will remain for the life of the drive, so that your system always boots from flash.