Product comparison · 2 internal hard drives

HP 870759-K21 internal hard drive vs Seagate S-series ST4000NC000-RF internal hard drive

8specifications compared
7differ
1identical
23known for one product only

Key differences

The HP 870759-K21 internal hard drive has 9,100 RPM more HDD speed than the Seagate S-series ST4000NC000-RF internal hard drive (15000 RPM vs 5900 RPM). The Seagate S-series ST4000NC000-RF internal hard drive has 1" more HDD size than the HP 870759-K21 internal hard drive (3.5" vs 2.5"). The HP 870759-K21 internal hard drive has 152.2 mm more width than the Seagate S-series ST4000NC000-RF internal hard drive (254 mm vs 101.8 mm). HDD capacity: 900 GB on the HP 870759-K21 internal hard drive, 4 TB on the Seagate S-series ST4000NC000-RF internal hard drive. Interface: SAS on the HP 870759-K21 internal hard drive, Serial ATA III on the Seagate S-series ST4000NC000-RF internal hard drive.

HDD capacity
- 870759-K21 internal hard drive:900 GB
- S-series ST4000NC000-RF internal hard drive:4 TB
HDD speed
- 870759-K21 internal hard drive:15000 RPM
- S-series ST4000NC000-RF internal hard drive:5900 RPM
HDD size
- 870759-K21 internal hard drive:2.5"
- S-series ST4000NC000-RF internal hard drive:3.5"
Interface
- 870759-K21 internal hard drive:SAS
- S-series ST4000NC000-RF internal hard drive:Serial ATA III
Width
- 870759-K21 internal hard drive:254 mm
- S-series ST4000NC000-RF internal hard drive:101.8 mm
Height
- 870759-K21 internal hard drive:127 mm
- S-series ST4000NC000-RF internal hard drive:26.1 mm
Weight
- 870759-K21 internal hard drive:1.36 kg
- S-series ST4000NC000-RF internal hard drive:606 g

Side by side

Differences highlightedShow differences only

Comparison of 870759-K21, ST4000NC000-RF
31 specifications	A HP 870759-K21 internal hard drive Model 870759-K21 View product	B Seagate S-series ST4000NC000-RF internal hard drive Model ST4000NC000-RF View product
Features4 differ
HDD capacityDiffers	900 GB	4 TB
HDD speedDiffers	15000 RPM	5900 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA III
Type	HDD	HDD
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	64 MB
HDD number of headsKnown for one	Unknown — not stated by the source	8
Read seek timeKnown for one	Unknown — not stated by the source	12 ms
Write seek timeKnown for one	Unknown — not stated by the source	12 ms
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
RefurbishedKnown for one	Unknown — not stated by the source	Yes
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	800000 h
Component forKnown for one	Server	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
HDD interface transfer rateKnown for one	12 Gbit/s	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	6.49 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.77 W
Power consumption (idle)Known for one	Unknown — not stated by the source	4.59 W
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
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%
Weight & dimensions3 differ
WidthDiffers	254 mm	101.8 mm
HeightDiffers	127 mm	26.1 mm
WeightDiffers	1.36 kg	606 g
DepthKnown for one	219.2 mm	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
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.

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