HP 1TB SATA SQ vs Seagate 500GB Constellation ES SAS HDD

Comparison of 1TB SATA SQ, 500GB Constellation ES SAS HDD

32 specifications	A HP 1TB SATA SQView product	B Seagate 500GB Constellation ES SAS HDDView product
Features1 differ
HDD capacityDiffers	1 TB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Storage drive buffer sizeKnown for one	—Unknown — not stated by the source	16 MB
Read seek timeKnown for one	—Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	—Unknown — not stated by the source	9.5 ms
Track to track seek timeKnown for one	—Unknown — not stated by the source	0.5 ms
Average latencyKnown for one	—Unknown — not stated by the source	4.16 ms
Bytes per sectorKnown for one	—Unknown — not stated by the source	512
Mean time between failures (MTBF)Known for one	—Unknown — not stated by the source	1200000 h
InterfaceKnown for one	Serial ATA	—Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	—Unknown — not stated by the source	10.4 W
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentKnown for one	—Unknown — not stated by the source	1.89 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	—Unknown — not stated by the source	5 - 60 °C
Storage temperature (T-T)Known for one	—Unknown — not stated by the source	-40 - 70 °C
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	101.6 mm
DepthKnown for one	—Unknown — not stated by the source	147 mm
HeightKnown for one	—Unknown — not stated by the source	26.1 mm
WeightKnown for one	—Unknown — not stated by the source	610 g
Other featuresidentical
Ethernet LANKnown for one	—Unknown — not stated by the source	No
Data transfer rateKnown for one	—Unknown — not stated by the source	6 Gbit/s
Fibre ChannelKnown for one	—Unknown — not stated by the source	No
FireWire 400Known for one	—Unknown — not stated by the source	No
FireWire 800Known for one	—Unknown — not stated by the source	No
Internal	Yes	Yes
USB 2.0 ports quantityKnown for one	—Unknown — not stated by the source	0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	—Unknown — not stated by the source	0
USB poweredKnown for one	—Unknown — not stated by the source	No
eSATAKnown for one	—Unknown — not stated by the source	No
Sustained data rateKnown for one	—Unknown — not stated by the source	150 MB/s
Acoustic pressure emissionsKnown for one	—Unknown — not stated by the source	1.9 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.