Product comparison · 2 internal hard drives

Fujitsu 36.7GB, 2.5", 15K, SAS vs Fujitsu 40GB, 2.5", 4200rpm

22specifications compared
17differ
5identical
12known for one product only

Key differences

The Fujitsu 40GB, 2.5", 4200rpm has 3.3 GB more HDD capacity than the Fujitsu 36.7GB, 2.5", 15K, SAS (40 GB vs 36.7 GB). The Fujitsu 36.7GB, 2.5", 15K, SAS has 10,800 RPM more HDD speed than the Fujitsu 40GB, 2.5", 4200rpm (15000 RPM vs 4200 RPM). The Fujitsu 36.7GB, 2.5", 15K, SAS has 8 MB more storage drive buffer size than the Fujitsu 40GB, 2.5", 4200rpm (16 MB vs 8 MB). Interface: SAS on the Fujitsu 36.7GB, 2.5", 15K, SAS, Ultra-ATA/133 on the Fujitsu 40GB, 2.5", 4200rpm. Operating temperature (T-T): 5 - 55 °C on the Fujitsu 36.7GB, 2.5", 15K, SAS, -20 - 80 °C on the Fujitsu 40GB, 2.5", 4200rpm.

HDD capacity
- 36.7GB, 2.5", 15K, SAS:36.7 GB
- 40GB, 2.5", 4200rpm:40 GB
HDD speed
- 36.7GB, 2.5", 15K, SAS:15000 RPM
- 40GB, 2.5", 4200rpm:4200 RPM
Interface
- 36.7GB, 2.5", 15K, SAS:SAS
- 40GB, 2.5", 4200rpm:Ultra-ATA/133
Storage drive buffer size
- 36.7GB, 2.5", 15K, SAS:16 MB
- 40GB, 2.5", 4200rpm:8 MB
Read seek time
- 36.7GB, 2.5", 15K, SAS:0.2 ms
- 40GB, 2.5", 4200rpm:12 ms
Write seek time
- 36.7GB, 2.5", 15K, SAS:0.4 ms
- 40GB, 2.5", 4200rpm:14 ms
Average latency
- 36.7GB, 2.5", 15K, SAS:2 ms
- 40GB, 2.5", 4200rpm:7.14 ms
Mean time between failures (MTBF)
- 36.7GB, 2.5", 15K, SAS:1400000 h
- 40GB, 2.5", 4200rpm:300000 h

Side by side

Differences highlightedShow differences only

Comparison of 36.7GB, 2.5", 15K, SAS, 40GB, 2.5", 4200rpm
34 specifications	A Fujitsu 36.7GB, 2.5", 15K, SAS View product	B Fujitsu 40GB, 2.5", 4200rpm View product
Features8 differ
HDD capacityDiffers	36.7 GB	40 GB
HDD speedDiffers	15000 RPM	4200 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	SAS	Ultra-ATA/133
Type	HDD	HDD
Storage drive buffer sizeDiffers	16 MB	8 MB
Read seek timeDiffers	0.2 ms	12 ms
Write seek timeDiffers	0.4 ms	14 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	1.5 ms
Average latencyDiffers	2 ms	7.14 ms
Bytes per sector	512	512
Mean time between failures (MTBF)Differs	1400000 h	300000 h
Component forKnown for one	Server/workstation	Unknown — not stated by the source
HDD number of cylindersKnown for one	1	Unknown — not stated by the source
HDD number of headsKnown for one	2	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	6 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.2 W
Operating voltage	5 V	5 V
Operational conditions5 differ
Operating temperature (T-T)Differs	5 - 55 °C	-20 - 80 °C
Storage temperature (T-T)Differs	-40 - 70 °C	-40 - 85 °C
Operating relative humidity (H-H)Differs	5 - 95%	8 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating vibrationKnown for one	Unknown — not stated by the source	1 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	5 G
Operating altitudeKnown for one	Unknown — not stated by the source	-300 - 4000 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-300 - 12000 m
Operating shockDiffers	100 G	300 G
Non-operating shockDiffers	400 G	900 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	70 mm
DepthDiffers	15 mm	100 mm
HeightDiffers	100.5 mm	9.5 mm
WeightDiffers	220 g	960 g
Other featuresidentical
Drive ready timeKnown for one	Unknown — not stated by the source	3.5 s
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	16 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.

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