Product comparison · 2 internal hard drives

HP J3H77AV internal hard drive vs Seagate Constellation.2 2TB

12specifications compared
8differ
4identical
17known for one product only

Key differences

HDD capacity
- J3H77AV internal hard drive:500 GB
- Constellation.2 2TB:2 TB
HDD size
- J3H77AV internal hard drive:3.5"
- Constellation.2 2TB:2.5"
Interface
- J3H77AV internal hard drive:Serial ATA III
- Constellation.2 2TB:SAS
Storage drive buffer size
- J3H77AV internal hard drive:16 MB
- Constellation.2 2TB:128 MB
HDD interface transfer rate
- J3H77AV internal hard drive:6 Gbit/s
- Constellation.2 2TB:12 Gbit/s
Operating voltage
- J3H77AV internal hard drive:5 / 12 V
- Constellation.2 2TB:5 V
Width
- J3H77AV internal hard drive:101.7 mm
- Constellation.2 2TB:70.1 mm
Height
- J3H77AV internal hard drive:25.4 mm
- Constellation.2 2TB:15 mm

Side by side

Differences highlightedShow differences only

Comparison of J3H77AV, Constellation.2 2TB
29 specifications	A HP J3H77AV internal hard drive Model J3H77AV View product	B Seagate Constellation.2 2TB View product
Features5 differ
HDD capacityDiffers	500 GB	2 TB
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA III	SAS
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Storage drive buffer sizeDiffers	16 MB	128 MB
HDD interface transfer rateDiffers	6 Gbit/s	12 Gbit/s
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Full stroke seek timeKnown for one	21 ms	Unknown — not stated by the source
Average seek timeKnown for one	11 ms	Unknown — not stated by the source
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	6.02 W
Power consumption (standby)Known for one	Unknown — not stated by the source	1.52 W
Power consumption (idle)Known for one	Unknown — not stated by the source	3.53 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	3 G
Operating shockKnown for one	Unknown — not stated by the source	25 G
Non-operating shockKnown for one	Unknown — not stated by the source	400 G
Weight & dimensions2 differ
WidthDiffers	101.7 mm	70.1 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightDiffers	25.4 mm	15 mm
WeightKnown for one	Unknown — not stated by the source	198 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes

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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