Toshiba is launching its Q300 and Q300 Pro series of internal 2.5"/7mm Solid State Drives (SSDs) with 15nm flash memory technology. As well as enhancing performance and reducing power consumption, the evolution from 19nm to 15nm flash sees the maximum available capacity of the Toshiba SSD Q300 Pro family rise to 1024GB.

Based on 3-bit-per-cell TLC (triple-level-cell) 15nm flash memory, Toshiba's Q300 series have been designed for users looking to upgrade their PCs by replacing conventional internal hard drives.

The flagship Q300 Pro models, which use 2-bit-per-cell MLC (multi-level-cell) 15nm technology, are designed to address the performance demands of graphic designers or gamers.

The new SSDs feature a backwards-compatible SATA III interface that is rated for maximum data transfer rates of 6.0Gbit/s. Toshiba's adaptive size SLC write cache advanced speed technology optimises processing speed to deliver sequential write speeds up to 530MB/s, while maximum sequential read speeds go up to 550MB/s. Maximum respective random read and write speeds are 92,000 IOPS and 63,000 IOPS for Q300 Pro models and 87,000 IOPS and 83,000 IOPS in the case of Q300 SSDs.

Toshiba's Q300 Pro SSDs are available in capacities of 1024 GB, 512 GB and 256 GB. Capacity options for the Q300 SSDs are 960 GB, 480 GB, 240 GB and 120 GB.

All of the drives offer support for native command queuing (NCQ), S.M.A.R.T. (self-monitoring analysis and reporting technology), zeroing TRIM and Patrol Read (this is only available with Q300 Pro).

Models in the Q300 Pro series also feature Toshiba's proprietary QSBC (Quadruple Swing-By Code) error correction technology.

MTTF ratings for all Q300 Pro and Q300 models are 1,500,000 hours.

The new drives will be available from April 2016. Standard warranty is five years for the Q300 Pro and three years for the Q300. Typical purchase prices (TPP) are expected to be as follows (UK):