Product comparison · 2 internal hard drives

Acer 120GB 2.5" SATA vs Seagate DB35 7200.3 400GB Ultra ATA 100

Key differences

HDD capacity
- 120GB 2.5" SATA:120 GB
- DB35 7200.3 400GB Ultra ATA 100:400 GB
HDD speed
- 120GB 2.5" SATA:5400 RPM
- DB35 7200.3 400GB Ultra ATA 100:7200 RPM
HDD size
- 120GB 2.5" SATA:2.5"
- DB35 7200.3 400GB Ultra ATA 100:3.5"
Interface
- 120GB 2.5" SATA:Serial ATA
- DB35 7200.3 400GB Ultra ATA 100:Ultra-ATA/100
Operating voltage
- 120GB 2.5" SATA:5 V
- DB35 7200.3 400GB Ultra ATA 100:5 / 12 V
Operating temperature (T-T)
- 120GB 2.5" SATA:5 - 55 °C
- DB35 7200.3 400GB Ultra ATA 100:0 - 60 °C
Width
- 120GB 2.5" SATA:70 mm
- DB35 7200.3 400GB Ultra ATA 100:101.6 mm
Depth
- 120GB 2.5" SATA:100 mm
- DB35 7200.3 400GB Ultra ATA 100:147 mm

Differences highlightedShow differences only

Comparison of 120GB 2.5" SATA, DB35 7200.3 400GB Ultra ATA 100
20 specifications	A Acer 120GB 2.5" SATA View product	B Seagate DB35 7200.3 400GB Ultra ATA 100 View product
Features4 differ
HDD capacityDiffers	120 GB	400 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer size	8 MB	8 MB
Average seek timeKnown for one	12.5 ms	Unknown — not stated by the source
Average latencyKnown for one	5.6 ms	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating shockKnown for one	250 G	Unknown — not stated by the source
Non-operating shockKnown for one	Unknown — not stated by the source	300 G
Weight & dimensions4 differ
WidthDiffers	70 mm	101.6 mm
DepthDiffers	100 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	100 g	635 g
Other features1 differ
Dimensions (WxDxH)Known for one	70 x 100 x 9.5 mm	Unknown — not stated by the source
Drive device, transfer rateDiffers	150 MB/s	100 MB/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.