Product comparison · 2 internal hard drives

Samsung 300GB Serial ATA II HDD, 20-Pk vs Samsung 400GB Serial ATA II HDD, 20-Pk

Key differences

The Samsung 400GB Serial ATA II HDD, 20-Pk has 100 GB more HDD capacity than the Samsung 300GB Serial ATA II HDD, 20-Pk (400 GB vs 300 GB).

HDD capacity
- 300GB Serial ATA II HDD, 20-Pk:300 GB
- 400GB Serial ATA II HDD, 20-Pk:400 GB

Differences highlightedShow differences only

Comparison of 300GB Serial ATA II HDD, 20-Pk, 400GB Serial ATA II HDD, 20-Pk
26 specifications	A Samsung 300GB Serial ATA II HDD, 20-Pk View product	B Samsung 400GB Serial ATA II HDD, 20-Pk View product
Features1 differ
HDD capacityDiffers	300 GB	400 GB
HDD speed	7200 RPM	7200 RPM
Interface	Serial ATA II	Serial ATA II
Storage drive buffer size	8 MB	8 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)	10 W	10 W
Power consumption (standby)Known for one	1.3 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	8.4 W	Unknown — not stated by the source
Power consumption (off)Known for one	Unknown — not stated by the source	1.3 W
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%
Non-operating altitude	12000	12000
Operating shock	63 G	63 G
Non-operating shock	300 G	300 G
Other featuresidentical
Power requirementsKnown for one	+5V±5%; +12V±10%	Unknown — not stated by the source
Internal	Yes	Yes
Maximum data transfer rateKnown for one	1000 Mbit/s	Unknown — not stated by the source
HDD transfer rateKnown for one	Unknown — not stated by the source	1000 Mbit/s
Drive ready timeKnown for one	Unknown — not stated by the source	10 s

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.