Product comparison · 2 internal hard drives

Lenovo 500GB 3.5" SATA II vs Seagate EE25 Series 30GB SATA 25pk

Key differences

HDD capacity
- 500GB 3.5" SATA II:500 GB
- EE25 Series 30GB SATA 25pk:30 GB
HDD speed
- 500GB 3.5" SATA II:7200 RPM
- EE25 Series 30GB SATA 25pk:5400 RPM
HDD size
- 500GB 3.5" SATA II:3.5"
- EE25 Series 30GB SATA 25pk:2.5"
Interface
- 500GB 3.5" SATA II:Serial ATA II
- EE25 Series 30GB SATA 25pk:Serial ATA
Read seek time
- 500GB 3.5" SATA II:8.5 ms
- EE25 Series 30GB SATA 25pk:12.5 ms
Average latency
- 500GB 3.5" SATA II:4.2 ms
- EE25 Series 30GB SATA 25pk:5.6 ms
Operating voltage
- 500GB 3.5" SATA II:5 / 12 V
- EE25 Series 30GB SATA 25pk:5 V
Width
- 500GB 3.5" SATA II:102 mm
- EE25 Series 30GB SATA 25pk:69.8 mm

Differences highlightedShow differences only

Comparison of 500GB 3.5" SATA II, EE25 Series 30GB SATA 25pk
21 specifications	A Lenovo 500GB 3.5" SATA II View product	B Seagate EE25 Series 30GB SATA 25pk View product
Features6 differ
HDD capacityDiffers	500 GB	30 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	Serial ATA
Read seek timeDiffers	8.5 ms	12.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	14.5 ms
Average latencyDiffers	4.2 ms	5.6 ms
TypeKnown for one	HDD	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating shockKnown for one	Unknown — not stated by the source	200 G
Non-operating shockKnown for one	Unknown — not stated by the source	800 G
Weight & dimensions4 differ
WidthDiffers	102 mm	69.8 mm
DepthDiffers	26 mm	100.2 mm
HeightDiffers	147 mm	9.5 mm
WeightDiffers	700 g	100 g
Other featuresidentical
InternalKnown for one	Unknown — not stated by the source	Yes
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	2.3 dB
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
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717050	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.