Tokyo-based Toshiba Corp. said it has expanded its family of small form factor 2.5 inch hard drives with a new series scheduled to ship on August 30, the MQ01ACF series. This will be the company's first 7,278 RPM, 2.5 inch product with a 7 mm height, and will be served up in two capacities: 320 GB (MQ01ACF032) and 500 GB (MQ01ACF050).
"A maximum internal transfer rate of 1,850 Mbit/s is realized by improvement to linear recording density and the 7,278 RPM rotational speed," the company said. "Implementation of the 6 Gbit/s SATA interface also boosts data transfer rates over those of current models."
According to the specs, both models will have a 4.13 ms average latency time, a 12 ms average seek time, a 2 ms track to track seek time, and a 22 ms maximum seek time. The LBA for the 500 GB model will be 976,773,168 whereas the LBA for the 320 GB model will be 625,142,448. The overall dimensions for both will be 69.85 x 100.0 x 7 mm, making these drives great for laptops and super-thin Ultrabooks.
The specs also show that the drives will be RoHS compatible, and have a buffer size of 16 MiB. The HOST bytes per sector will be 512 byte, the DISK bytes per sector will be 4,096 byte, and the load/unload reliability will be 600,000 times. Power consumption will range from 0.8 watts (low-power idle) to 5.5 watts maximum (start), and the noise level will range from 24dB (seek) to 23dB (idle average). Both will be compatible with SATA 2 and older interfaces.
Toshiba did not provide pricing for the two drives, so stay tuned.