Samsung 320GB Serial ATA II HDD vs Samsung 320GB Serial ATA II HDD, Retail Kit

Comparison of 320GB Serial ATA II HDD, 320GB Serial ATA II HDD, Retail Kit

24 specifications	A Samsung 320GB Serial ATA II HDDView product	B Samsung 320GB Serial ATA II HDD, Retail KitView product
Featuresidentical
HDD capacity	320 GB	320 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA II	Serial ATA II
Storage drive buffer size	16 MB	16 MB
Full stroke seek time	18 ms	18 ms
Track to track seek time	0.8 ms	0.8 ms
Average seek time	8.9 ms	8.9 ms
Average latency	4.17 ms	4.17 ms
Bytes per sector	512	512
Mean time between failures (MTBF)	600000 h	600000 h
Poweridentical
Power consumption (typical)	8 W	8 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating shock	63 G	63 G
Non-operating shock	350 G	350 G
Other featuresidentical
HDD transfer rate	300 Mbit/s	300 Mbit/s
Power requirements	+5V; +12V	+5V; +12V
Drive ready time	10 s	10 s
Internal	Yes	Yes
Acoustic pressure emissions	2.4 dB	2.4 dB

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.