Toshiba has introduced its Q300 and Q300 Pro series of solid-state drives. Both models feature adaptive SLC write caches, and they're available in a 2.5" SATA form factor.
The Q300 Pro series is aimed at demanding users, and it uses one of Toshiba's own controllers paired with MLC flash. At idle, the Q300 Pro supposedly draws a mere 125mW and load power is only 3.3W. The Q300 Pro series is rated at 550MB/s sequential reads and 530MB/s for sequential writes—these are SATA drives, after all. Random I/O clocks in at 92k IOPS for reads and 63k IOPS for writes. Pricing starts at $125 for the 128GB model, up to $390 for the 512GB model. Toshiba backs the Pro series with a five-year warranty.
The budget-minded Q300 comes in capacities from 120GB to 960GB. These drives use another of Toshiba's controllers and TLC NAND. Sequential read performance is rated at 550MB/s, and sequential writes truck along at 530MB/s. Random I/O is slightly slower than the Q300 Pro at 87k IOPS per second for reads and 83k IOPS for writes. Suggested prices are lower per-gigabyte than the Q300 Pro, too: the 960GB version will cost $450, while the 120GB version starts at $100. These drives are backed by a three-year warranty.
Toshiba says both the Q300 and Q300 Pro families are available immediately, though we haven't seen any listings pop up at Newegg yet.