Product comparison · 2 internal hard drives

Samsung 40GB Serial ATA II HDD, 20-PK vs Samsung 40GB Ultra-ATA/133 HDD, 20-PK

24specifications compared
7differ
17identical
3known for one product only

Key differences

The Samsung 40GB Serial ATA II HDD, 20-PK has 6 MB more storage drive buffer size than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (8 MB vs 2 MB). The Samsung 40GB Serial ATA II HDD, 20-PK has 0.9 W more power consumption (typical) than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (8 W vs 7.1 W). The Samsung 40GB Serial ATA II HDD, 20-PK has 0.2 W more power consumption (standby) than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (0.7 W vs 0.5 W). Interface: Serial ATA II on the Samsung 40GB Serial ATA II HDD, 20-PK, Ultra-ATA/133 on the Samsung 40GB Ultra-ATA/133 HDD, 20-PK. Operating temperature (T-T): 0 - 60 °C on the Samsung 40GB Serial ATA II HDD, 20-PK, 5 - 55 °C on the Samsung 40GB Ultra-ATA/133 HDD, 20-PK.

Interface
- 40GB Serial ATA II HDD, 20-PK:Serial ATA II
- 40GB Ultra-ATA/133 HDD, 20-PK:Ultra-ATA/133
Storage drive buffer size
- 40GB Serial ATA II HDD, 20-PK:8 MB
- 40GB Ultra-ATA/133 HDD, 20-PK:2 MB
Power consumption (typical)
- 40GB Serial ATA II HDD, 20-PK:8 W
- 40GB Ultra-ATA/133 HDD, 20-PK:7.1 W
Power consumption (standby)
- 40GB Serial ATA II HDD, 20-PK:0.7 W
- 40GB Ultra-ATA/133 HDD, 20-PK:0.5 W
Power consumption (PowerSave)
- 40GB Serial ATA II HDD, 20-PK:0.7 W
- 40GB Ultra-ATA/133 HDD, 20-PK:0.5 W
Operating temperature (T-T)
- 40GB Serial ATA II HDD, 20-PK:0 - 60 °C
- 40GB Ultra-ATA/133 HDD, 20-PK:5 - 55 °C
Drive device, transfer rate
- 40GB Serial ATA II HDD, 20-PK:300 MB/s
- 40GB Ultra-ATA/133 HDD, 20-PK:133 MB/s

Side by side

Differences highlightedShow differences only

Comparison of 40GB Serial ATA II HDD, 20-PK, 40GB Ultra-ATA/133 HDD, 20-PK
27 specifications	A Samsung 40GB Serial ATA II HDD, 20-PK View product	B Samsung 40GB Ultra-ATA/133 HDD, 20-PK View product
Features2 differ
InterfaceDiffers	Serial ATA II	Ultra-ATA/133
Storage drive buffer sizeDiffers	8 MB	2 MB
Power3 differ
Power consumption (typical)Differs	8 W	7.1 W
Power consumption (standby)Differs	0.7 W	0.5 W
Power consumption (PowerSave)Differs	0.7 W	0.5 W
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Other features1 differ
Power requirementsKnown for one	Unknown — not stated by the source	+5V / +12V
Drive device, transfer rateDiffers	300 MB/s	133 MB/s
Drive ready timeKnown for one	Unknown — not stated by the source	7 s
Special featuresKnown for one	RoHS NoiseGuard SilentSeek	Unknown — not stated by the source

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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