Product comparison · 2 internal hard drives

Lenovo 500GB 3.5" SATA II vs Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk

10specifications compared
9differ
1identical
10known for one product only

Key differences

The Lenovo 500GB 3.5" SATA II has 460 GB more HDD capacity than the Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk (500 GB vs 40 GB). The Lenovo 500GB 3.5" SATA II has 1,800 RPM more HDD speed than the Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk (7200 RPM vs 5400 RPM). The Lenovo 500GB 3.5" SATA II has 1" more HDD size than the Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk (3.5" vs 2.5"). Operating voltage: 5 / 12 V on the Lenovo 500GB 3.5" SATA II, 5 V on the Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk.

HDD capacity
- 500GB 3.5" SATA II:500 GB
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:40 GB
HDD speed
- 500GB 3.5" SATA II:7200 RPM
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:5400 RPM
HDD size
- 500GB 3.5" SATA II:3.5"
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:2.5"
Average latency
- 500GB 3.5" SATA II:4.2 ms
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:5.5 ms
Operating voltage
- 500GB 3.5" SATA II:5 / 12 V
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:5 V
Width
- 500GB 3.5" SATA II:102 mm
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:69.8 mm
Depth
- 500GB 3.5" SATA II:26 mm
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:100.2 mm
Height
- 500GB 3.5" SATA II:147 mm
- EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk:9.5 mm

Side by side

Differences highlightedShow differences only

Comparison of 500GB 3.5" SATA II, EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk
20 specifications	A Lenovo 500GB 3.5" SATA II View product	B Seagate EE25.2 Series™ 2.5-inch HD 40GB PATA 25pk View product
Features4 differ
HDD capacityDiffers	500 GB	40 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceKnown for one	Serial ATA II	Unknown — not stated by the source
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer size	8 MB	8 MB
Read seek timeKnown for one	8.5 ms	Unknown — not stated by the source
Average latencyDiffers	4.2 ms	5.5 ms
Average seek timeKnown for one	Unknown — not stated by the source	11 ms
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Weight & dimensions4 differ
WidthDiffers	102 mm	69.8 mm
DepthDiffers	26 mm	100.2 mm
HeightDiffers	147 mm	9.5 mm
WeightDiffers	700 g	102 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717050	Unknown — not stated by the source
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	BSMI, C-Tick, CE MARK, CSA, IEC, TUV, UL	Unknown — not stated by the source
InternalKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%

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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