Harddisk Tertipis

Hitachi kembali membuat produk harddisk baru. Tipe Travelstar Z7K320 dengan tebalnya hanya 7 mm saja, memiliki kapasitas 320GB, 16MB buffer dan hanya membutuhkan power 1.8W. Bahkan posisi stand-by hanya 0.8W. Hardisk berukuran 2,5 inch ini dan memang didisain untuk digunakan di notebook/ netbook hanya mempunyai ketebalan 7 mm saja.

Travelstar Z7K320 bahkan mempunyai kecepatan putar 7200 RPM atau sama dengan hardisk ukuran 3,5 inch sedangkan kapasitas mulai dari 160 GB sampai 320 GB.


Spesifikasi

Model(s)	Standard Models HTS723232A7A364 HTS723225A7A364 HTS723216A7A364	BDE Option (TCG) Models HTS723232A7A365 HTS723225A7A365 HTS723216A7A365	EA Models HTE723232A7A364 HTE723225A7A364
Interface	SATA 3Gb/s
Capacity (GB)	320/250/160		320 / 250
Sector size (variable, Bytes/sector)	512
Recording zones	24
Max areal density (Gbits/sq. in.)	477
Performance
Data buffer (MB)	16
Rotational Speed (RPM)	7200
Media transfer rate (Mbits/sec, max)	1334
Interface transfer rate (MB/sec, max)	300
Seek time: Average (typical)ms(read)	13
Seek time: Track to track (typical)ms(read)	1
Seek time: Full Stroke (typical)ms(read)	25
Reliability
Load/Unload Cycles	600,000
Power on hours (POH) per month	N/A		720
Availability (hrs/day x days/wk)	N/A		24x7
Acoustics
Idle (Bels)	2.3
Seek (Bels, typical)	2.4
Power
Requirement	+5VDC (+/-5%)
Requirement: Start-up (W, peak, max)	5.5
Requirement: Read/Write (W, avg)	1.8
Requirement: Low power idle (W, avg)	0.8		N/A
Requirement: Standby (W, avg)	0.2
Dissipation: Seek (W, Avg)	2.1
Dissipation: Active Idle (W, Avg)	1.0		N/A
Performance Idle	1.7		Idle (Avg.) 1.7W
Sleep (W)	0.1
Operating (W, typical)	1.8
Physical size
Z-height (mm)	7
Dimensions (width x depth, mm)	70 x 100
Weight (g, max)	95
Environmental (operating)
Ambient temperature	0º to 60ºC
Shock (half-sine wave)	400G/wms, 225G/1ms
Environmental (non-operating)
Ambient temperature	-40º to 65ºC
Shock (half-sine wave)	1000G/1ms

Model lainnya adalah Hitachi Cinemastar Z5K320 juga dirancang tipis, mengkhususkan kinerja untuk video streaming seperti set-top box.
Hitachi Travelstar Z7K320 akan diproduksi masal pada bulan Agustus 2010.

referensi : http://www.hitachigst.com/