The Cheetah 15K.5 is mainstream enterprise disc drive storage. It is the best price/performance, lowest cost of ownership, 3.5-inch disc drive, with the industry's highest 3.5" disc drive reliability.

Features:

15K RPM spindle speed
Delivers more I/O's per second and faster sustained transfer rates than 10K 3.5-inch drvies, enabling the same high performance to be met with fewer drives.

Background Media Scan (BMS)
Second generation Seagate-exclusive BMS proactively scans the media for potential defects during drive idle time. It enables incipient errors to be corrected before data is lost.

Perpendicular Recording
Perpendicular recording is fundamentally superior, enabling the highest areal density with 30 percent higher performance.

Nonrecoverable Error Rate
The nonrecoverable error rate has been improved by a factor of 10.

Idle Read After Write (IRAW)
Seagate-exclusive IRAW enhances data protection by verifying-during drive idle time-that data in the drive buffer was properly written.

Specification

Product
Product id	188571
Brand	Seagate Technology
Partnr	ST3146855LC
EAN/UPC code	7636490019869
Warranty (months)	5 years
Hard drive
HDD interface	SCSI
Drive device, buffer size	16 MB
System requirements
Mac compatibility	N
Sound emission
Acoustic pressure emissions	32 dB
Features
HDD size	3.5
HDD capacity	146.8 GB
HDD speed	15000 RPM
HDD number of heads	4
Write seek time	4 ms
Read seek time	3.5 ms
Track to track seek time	0.2 / 0.4 ms
Average latency	2 ms
Power
Power consumption (typical)	14.2 W
Operational conditions
Operating temperature (T-T)	5-55 °C
Storage temperature (T-T)	-40-70 °C
Operating shock	60 G
Non-operating shock	250 G
Technical details
Compatibility	PCs
Dimensions (WxDxH)	101.6 x 46.05 x 25.4 mm
Weight & dimensions
Width	101.6 mm
Height	25.4 mm
Depth	46.05 mm
Weight	771 g
Other features
Internal	Y
USB powered	N
Drive device, transfer rate	320 MB/s
External power adapter	N