Product comparison · 2 internal hard drives

HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive vs HP 900GB hot-plug dual-port SAS HDD

10specifications compared
9differ
1identical
6known for one product only

Key differences

The HP 900GB hot-plug dual-port SAS HDD has 2,800 RPM more HDD speed than the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive (10000 RPM vs 7200 RPM). The HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive has 1" more HDD size than the HP 900GB hot-plug dual-port SAS HDD (3.5" vs 2.5"). The HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive has 27.1 mm more width than the HP 900GB hot-plug dual-port SAS HDD (105.8 mm vs 78.7 mm). HDD capacity: 4 TB on the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, 900 GB on the HP 900GB hot-plug dual-port SAS HDD. Interface: Serial ATA on the HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, SAS on the HP 900GB hot-plug dual-port SAS HDD.

HDD capacity
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:4 TB
- 900GB hot-plug dual-port SAS HDD:900 GB
HDD speed
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:7200 RPM
- 900GB hot-plug dual-port SAS HDD:10000 RPM
HDD size
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:3.5"
- 900GB hot-plug dual-port SAS HDD:2.5"
Interface
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:Serial ATA
- 900GB hot-plug dual-port SAS HDD:SAS
Operating voltage
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:5 / 12 V
- 900GB hot-plug dual-port SAS HDD:5 V
Width
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:105.8 mm
- 900GB hot-plug dual-port SAS HDD:78.7 mm
Depth
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:17 mm
- 900GB hot-plug dual-port SAS HDD:138.4 mm
Height
- 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive:26.8 mm
- 900GB hot-plug dual-port SAS HDD:16 mm

Side by side

Differences highlightedShow differences only

Comparison of 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, 900GB hot-plug dual-port SAS HDD
16 specifications	A HP 4TB 6G SATA 7.2k rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive View product	B HP 900GB hot-plug dual-port SAS HDD View product
Features4 differ
HDD capacityDiffers	4 TB	900 GB
HDD speedDiffers	7200 RPM	10000 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	SAS
HDD interface transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
Full stroke seek timeKnown for one	16.2 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	0.8 ms	Unknown — not stated by the source
Average seek timeKnown for one	8.5 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Weight & dimensions4 differ
WidthDiffers	105.8 mm	78.7 mm
DepthDiffers	17 mm	138.4 mm
HeightDiffers	26.8 mm	16 mm
WeightDiffers	1.36 kg	450 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/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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