Product comparison · 2 internal hard drives

Seagate Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100 vs Seagate Momentus ST9120822A-RFB internal hard drive

16specifications compared
2differ
14identical
19known for one product only

Key differences

HDD capacity
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:100 GB
- Momentus ST9120822A-RFB internal hard drive:120 GB
HDD number of heads
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:256
- Momentus ST9120822A-RFB internal hard drive:3

Side by side

Differences highlightedShow differences only

Comparison of 100GB, ST9120822A-RFB
35 specifications	A Seagate Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100 Model 100GB View product	B Seagate Momentus ST9120822A-RFB internal hard drive Model ST9120822A-RFB View product
Features2 differ
HDD capacityDiffers	100 GB	120 GB
HDD number of cylindersKnown for one	1024	Unknown — not stated by the source
HDD number of headsDiffers	256	3
Read seek timeKnown for one	22 ms	Unknown — not stated by the source
Write seek timeKnown for one	24 ms	Unknown — not stated by the source
Average seek timeKnown for one	11 ms	Unknown — not stated by the source
TypeKnown for one	Unknown — not stated by the source	HDD
Access timeKnown for one	Unknown — not stated by the source	12.5 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Poweridentical
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Operational conditionsidentical
Operating shockKnown for one	350 G	Unknown — not stated by the source
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Other featuresidentical
Drive device, transfer rateKnown for one	100 MB/s	Unknown — not stated by the source
External power adapterKnown for one	No	Unknown — not stated by the source
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Maximum data transfer rateKnown for one	352 Mbit/s	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
USB poweredKnown for one	No	Unknown — not stated by the source
HDD transfer rateKnown for one	Unknown — not stated by the source	100 Mbit/s
Sustained data rateKnown for one	Unknown — not stated by the source	44 MB/s
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(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.

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