Product comparison · 2 internal hard drives

Buffalo OP-HD2.0T internal hard drive vs Seagate 320GB Momentus 5400.5 HDD

8specifications compared
6differ
2identical
17known for one product only

Key differences

HDD capacity
- OP-HD2.0T internal hard drive:2 TB
- 320GB Momentus 5400.5 HDD:320 GB
HDD speed
- OP-HD2.0T internal hard drive:7200 RPM
- 320GB Momentus 5400.5 HDD:5400 RPM
Width
- OP-HD2.0T internal hard drive:104 mm
- 320GB Momentus 5400.5 HDD:69.8 mm
Depth
- OP-HD2.0T internal hard drive:30 mm
- 320GB Momentus 5400.5 HDD:100.5 mm
Height
- OP-HD2.0T internal hard drive:170 mm
- 320GB Momentus 5400.5 HDD:9.5 mm
Weight
- OP-HD2.0T internal hard drive:899 g
- 320GB Momentus 5400.5 HDD:98.5 g

Side by side

Differences highlightedShow differences only

Comparison of OP-HD2.0T, 320GB Momentus 5400.5 HDD
25 specifications	A Buffalo OP-HD2.0T internal hard drive Model OP-HD2.0T View product	B Seagate 320GB Momentus 5400.5 HDD View product
Features2 differ
HDD capacityDiffers	2 TB	320 GB
HDD speedDiffers	7200 RPM	5400 RPM
Interface	Serial ATA	Serial ATA
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
HDD number of headsKnown for one	Unknown — not stated by the source	4
Read seek timeKnown for one	Unknown — not stated by the source	14 ms
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	600000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	500000 h
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Poweridentical
Start-up currentKnown for one	Unknown — not stated by the source	1 A
Operating voltageKnown for one	5 / 12 V	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating shockKnown for one	Unknown — not stated by the source	350 G
Non-operating shockKnown for one	Unknown — not stated by the source	1000 G
Weight & dimensions4 differ
WidthDiffers	104 mm	69.8 mm
DepthDiffers	30 mm	100.5 mm
HeightDiffers	170 mm	9.5 mm
WeightDiffers	899 g	98.5 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Disks included quantityKnown for one	Unknown — not stated by the source	2 pc(s)
Internal	Yes	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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