Capacity: 320GB
Spindle Speed: 5,400RPM
Interface Type: SATA
Disk Size: 2.5″x9mm (Fits in ALL laptops)
Sustained Throughput (MBps): 
Average Seek Time (read/write ms): 12
Electrical Interface Speed: SATA 150 – 1.50Gbps
On-Board Cache: 8MB

Key Features
• Max. 320 GB formatted capacity per disk
• SATA Native Command Queuing Feature
• TuMR/PMR head with FOD TECHNOLOGY
• Serial ATA 3.0 Gbps Interface Support
• Load/Unload Head TECHNOLOGY
• ATA Security Mode Feature Set
• ATA S.M.A.R.T. Feature Set
• SilentSeek™
• NoiseGuard™
• EcoSeek

DPN: 0NW587 / NW587

Spinpoint M7 – HM320JI
Capacity	320
Interface	SATA 1.5 Gbps
Rotational Speed	5400 RPM
Buffer DRAM Size	8MB
SECTOR Size	512 bytes
PERFORMANCE SPECIFICATIONS
Average Seek Time	12 ms
Data Transfer Rates
MEDIA to/from buffer	826 MBps
Buffer to/from Host	150 MBps
Drive Ready Time	4 sec
RELIABILITY SPECIFICATIONS
Non-recoverable Read Error	1 SECTOR in 10 to the 14th bits
Controlled Ramp Load/Unload	600000
ACOUSTICS (AVERAGE SOUND POWER)
Idle (typical)	2.4 Bel
Performance Seek (typical)	2.6 Bel
ENVIRONMENTAL SPECIFICATIONS
Temperature Operating	5 – 55°C
Non-operating	– 40 – 70°C
Humidity (non-condensing) Operating	8 – 90 %
Non-operating	5 – 95 %
Linear Shock (1/2 sine pulse) Operating	400 G
Non-operating	900 G
Vibration Operating (Random, 10~500Hz)	1.5 Grms
Altitude (relative to sea level) Operating	-300 to 3,000 m
Non-operating	-400 to 15,000 m
POWER REQUIREMENTS
Voltage	+5V±5%
Spin Up Current (Max.)	1000 mA
Seek (avg)	2.2 W
Read/Write (avg)	2.0 W
Low Power Idle (avg)	0.6 W
Standby (avg)	0.25 W
Sleep (avg.I)	0.2 W
PHYSICAL DIMENSION
Height	9.5 mm
Width	69.85 mm
Length	100.0 mm
Weight (max.)	102 g