Hitachi Global Storage Technologies today announced volume shipment of the Travelstar 5K250 laptop hard disk drive, faeturing a capacity of 250GB.
Hitachi claims that the new Travelstar 5K250 hard drive combines the fastest application performance in PCMark testing with the best power-efficiency of any 250 gigabyte (GB) 5400 RPM drive in its class.
The newest 5400 RPM 2.5-inch hard drive from Hitachi also features a host of features including 400G shock protection, quiet acoustics and optional Bulk Data Encryption for hard-drive level data security.
Hitachi will also offer an enhanced-availability version, the E5K250, which is designed for applications needing around-the-clock access in lower transaction environments, such as blade servers, network routers, point-of-sale terminals and video surveillance systems.
A Quarter Terabyte & Many Extras
The Travelstar 5K250 hard drive offers 250 GB of storage,
a maximum sustained data rate of 665 megabits per second;
1.8W read/write power and 0.55W low power idle; and
400 G operating shock (1000 G non-operating shock).
In addition, in the supported Bulk Data Encryption technology, data is scrambled using a key as it is being written to the disk and then descrambled with the key as it is retrieved.
Another benefit to hard-drive level security is the data-erasing process. Bulk Data Encryption makes data-erasing unnecessary. By deleting the encryption key, the data on the hard drive is rendered unreadable and, thus, safe from prying eyes.
Technical Specifications
Travelstar 5K250 & E5K250
80/120/160/250 GB
9.5 mm in height
5400 RPM
205 billion bits per square inch maximum areal density
1/1/2/2 glass disk platter (s)
2/2/3/4 TMR recording head(s)
1000 G/1ms non-operating shock
400 G/2ms operating shock
5.5 ms average latency
11 ms average read time
0.8 W active idle (not applicable to E5K250)
0.55 W low-power idle (not applicable to E5K250)
Serial ATA 1.5Gb/s, 1.5Gb/s encrypted, 3Gb/s; Serial ATA 3Gb/s (E5K250)
95/95/102/102 grams in weight
2.4 Bels typical idle acoustics
2.6 Bels typical operational acoustics