Capacity: 400GB
Spindle Speed: 7,200RPM
Interface Type: IDE / ATA (3.5″)
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 
Average Seek Time (read/write ms): 11 / 12
Electrical Interface Speed: EIDE / Ultra ATA/100 – 100MBps
On-Board Cache: 16MB

Seagate Barracuda 7200.9 drives provide high-performance, highly- reliable storage for PCs and advanced applications, backed up by an industry-leading five-year warranty. Their best-in-class combination of capacity, performance, and support ideally suit them for such applications as high-performance PCs, MEDIA PCs, PATA-based servers and RAIDs, and cost-effective network attached storage (NAS).

Specifications
Model Number	ST3400633A
Interface	Ultra ATA/100
Cache	16MB
Capacity	400GB
Guaranteed SECTORS	781,422,768
PHYSICAL
Height	26.11mm (1.028 in)
Width	101.6mm (4.010 in)
Length	146.99mm (5.787 in)
Weight (typical)	710g (1.57 lb)
PERFORMANCE
Spin Speed (RPM)	7,200 RPM
Average latency	4.16ms
Random read seek time	<11.0ms
Random write seek time	<12.0ms
RELIABILITY
Annual Failure Rate	0.34%
POWER
Maximum start current, DC	2.90
ACOUSTICS
Acoustics (Idle Volume)	2.8 bels
Acoustics (Seek Volume)	3.2 belsa