Product comparison · 2 internal hard drives

Lenovo 500GB 3.5" SATA II vs Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk

9specifications compared
9differ
0identical
12known for one product only

Key differences

The Lenovo 500GB 3.5" SATA II has 100 GB more HDD capacity than the Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk (500 GB vs 400 GB). The Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk has 8 MB more storage drive buffer size than the Lenovo 500GB 3.5" SATA II (16 MB vs 8 MB). The Lenovo 500GB 3.5" SATA II has 4.6 ms more read seek time than the Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk (8.5 ms vs 3.9 ms). Interface: Serial ATA II on the Lenovo 500GB 3.5" SATA II, SAS on the Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk.

HDD capacity
- 500GB 3.5" SATA II:500 GB
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:400 GB
Interface
- 500GB 3.5" SATA II:Serial ATA II
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:SAS
Storage drive buffer size
- 500GB 3.5" SATA II:8 MB
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:16 MB
Read seek time
- 500GB 3.5" SATA II:8.5 ms
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:3.9 ms
Average latency
- 500GB 3.5" SATA II:4.2 ms
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:2.98 ms
Width
- 500GB 3.5" SATA II:102 mm
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:101.8 mm
Depth
- 500GB 3.5" SATA II:26 mm
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:147 mm
Height
- 500GB 3.5" SATA II:147 mm
- Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk:26.1 mm

Side by side

Differences highlightedShow differences only

Comparison of 500GB 3.5" SATA II, Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk
21 specifications	A Lenovo 500GB 3.5" SATA II View product	B Seagate Cheetah NS 400GB 3-Gb/s Serial Attached SCSI 10pk View product
Features5 differ
HDD capacityDiffers	500 GB	400 GB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA II	SAS
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
Read seek timeDiffers	8.5 ms	3.9 ms
Average latencyDiffers	4.2 ms	2.98 ms
Write seek timeKnown for one	Unknown — not stated by the source	4.2 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.35 ms
Poweridentical
Operating voltageKnown for one	5 / 12 V	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	102 mm	101.8 mm
DepthDiffers	26 mm	147 mm
HeightDiffers	147 mm	26.1 mm
WeightDiffers	700 g	771 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
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes
Sustained data rateKnown for one	Unknown — not stated by the source	97 MB/s

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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