Hitachi 500GB, Travelstar Z7K500 EA, SATA3, 32MB, 7200rpm, 2.5" 7mm

Travelstar™ Z7K500 is the second generation 7mm, 7200 RPM 2.5-inch hard drive from HGST, with capacities ranging from 250GB to 500GB leveraging Advanced Format, which increases the physical sector size from 512 bytes to 4,096 (4K) bytes to improve drive capacities and error correction capabilities. Travelstar Z7K500 is the first 2.5-inch HDD with a 6Gb/s SATA interface and 32MB of cache and delivers the highest 7200 RPM performance in PCMark Vantage testing. The 500GB per platter, one-disk models are designed as a direct replacement for standard 9.5mm HDDs, for use in notebook PCs, external storage and gaming consoles, as well as new, thinner and more robust device designs.

Highlights
• First 7200 RPM, 500GB in a 7mm, single-disk design
• Advanced Format, 512-byte emulation
• First 6Gb/s SATA interface on a mobile HDD
• Low power consumption
• Halogen-free for eco-friendly footprint
• Self-encrypting models for data security
• Enhanced-availability (EA) models for applications needing around-the-clock access in lower-transaction environments

Applications / Environments
• Notebook and ultra-portable PCs
• Tablets
• Compact desktop PCs
• External storage
• Gaming consoles
• Compact video devices
• Blade servers (EA)
• Network routers (EA)
• Video surveillance (EA)

Model(s)	Standard Models	BDE Option Models	EA Models HTE725050A7E630
Interface	SATA 6Gb/s
Capacity (GB)	500 / 320 / 250		500 / 320
Sector size (variable, Bytes/sector)	512e
Recording zones	30
Max areal density (Gbits/sq. in.)	630
Performance
Data buffer (MB)	32
Rotational Speed (RPM)	7200
Latency Average (ms)	4.2
Media transfer rate (Mbits/sec, max)	1369
Interface transfer rate (MB/sec, max)	600
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		730
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
Sleep (W)	0.1
Physical size
Z-height (mm)	7
Dimensions (width x depth, mm)	70x100
Weight (g, max)	95
Environmental (operating)
Ambient temperature	0º to 60ºC
Shock (half-sine wave)	400G/2ms, 225G/1ms
Environmental (non-operating)
Ambient temperature	-40º to 65ºC
Shock (half-sine wave)	1000G/1ms

Capacity (GB) - One GB is equal to one billion bytes when referring to hard drive capacity. Accessible capacity will vary according to operating environment and formatting
Sector size (bytes) - Advanced Format drive: 4K physical sectors with 512-byte emulation Data buffer (MB) - Portion of buffer used for firmware
Average (typical) ms (read) - Excludes command overhead
Availability - Designed for low duty cycle, non mission-critical applications in PC, nearline and consumer electronics environments, which vary application to application