Product comparison · 2 internal hard drives

Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive vs Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)

14specifications compared
7differ
7identical
4known for one product only

Key differences

The Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) has 20 GB more HDD capacity than the Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive (120 GB vs 100 GB). The Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive has 1.5 ms more average seek time than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (12.5 ms vs 11 ms). The Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) has 1.5 ms more average latency than the Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive (7.1 ms vs 5.6 ms). Interface: Ultra-ATA/100 on the Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive, Ultra-ATA/133 on the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option). Storage temperature (T-T): -40 - 70 °C on the Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive, -40 - 65 °C on the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option).

HDD capacity
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:100 GB
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):120 GB
Interface
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:Ultra-ATA/100
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):Ultra-ATA/133
Average seek time
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:12.5 ms
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):11 ms
Average latency
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:5.6 ms
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):7.1 ms
Storage temperature (T-T)
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:-40 - 70 °C
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):-40 - 65 °C
Weight
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:100 g
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):99 g
Drive device, transfer rate
- 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive:100 MB/s
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):380 MB/s

Side by side

Differences highlightedShow differences only

Comparison of 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive, 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)
18 specifications	A Acer 100GB 2.5" 4200rpm Seagate N2.2 ST9100825A F/W 3.06 hard disk drive View product	B Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)View product
Features4 differ
HDD capacityDiffers	100 GB	120 GB
HDD speed	4200 RPM	4200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Ultra-ATA/100	Ultra-ATA/133
Average seek timeDiffers	12.5 ms	11 ms
Average latencyDiffers	5.6 ms	7.1 ms
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)	5 - 55 °C	5 - 55 °C
Storage temperature (T-T)Differs	-40 - 70 °C	-40 - 65 °C
Operating shockKnown for one	250 G	Unknown — not stated by the source
Weight & dimensions1 differ
Width	70 mm	70 mm
Depth	100 mm	100 mm
Height	9.5 mm	9.5 mm
WeightDiffers	100 g	99 g
Other features1 differ
Dimensions (WxDxH)	70 x 100 x 9.5 mm	70 x 100 x 9.5 mm
Drive device, transfer rateDiffers	100 MB/s	380 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.

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