Product comparison · 2 internal hard drives

Lenovo 300GB 2.5" SATA II vs Lenovo 450GB 3.5" SAS

Key differences

Differences highlightedShow differences only

Comparison of 300GB 2.5" SATA II, 450GB 3.5" SAS
17 specifications	A Lenovo 300GB 2.5" SATA II View product	B Lenovo 450GB 3.5" SAS View product
Features4 differ
HDD capacityDiffers	300 GB	450 GB
HDD speedDiffers	10000 RPM	15000 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA II	SAS
Type	HDD	HDD
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Hot-swap	Yes	Yes
Read seek timeKnown for one	4.2 ms	Unknown — not stated by the source
Write seek timeKnown for one	4.2 ms	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Weight & dimensions3 differ
WidthDiffers	42.6 mm	101 mm
DepthDiffers	4.85 mm	147 mm
HeightDiffers	45.1 mm	26 mm
WeightKnown for one	350 g	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Internal	Yes	Yes
CertificationKnown for one	Unknown — not stated by the source	UL, C-Tick, CE, CSA, TUV, BSMI

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.