Product comparison · 2 internal hard drives

HP K4T76AT internal hard drive vs Seagate 40GB 3.5

6specifications compared
3differ
3identical
32known for one product only

Key differences

HDD capacity
- K4T76AT internal hard drive:4 TB
- 40GB 3.5:40 GB
Interface
- K4T76AT internal hard drive:Serial ATA
- 40GB 3.5:Ultra-ATA/100
Storage drive buffer size
- K4T76AT internal hard drive:128 MB
- 40GB 3.5:2 MB

Side by side

Differences highlightedShow differences only

Comparison of K4T76AT, 40GB 3.5
38 specifications	A HP K4T76AT internal hard drive Model K4T76AT View product	B Seagate 40GB 3.5 View product
Features3 differ
HDD capacityDiffers	4 TB	40 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Type	HDD	HDD
Storage drive buffer sizeDiffers	128 MB	2 MB
HDD number of cylindersKnown for one	Unknown — not stated by the source	16383
HDD number of headsKnown for one	Unknown — not stated by the source	16
Read seek timeKnown for one	Unknown — not stated by the source	11 ms
Write seek timeKnown for one	Unknown — not stated by the source	12 ms
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Hot-swapKnown for one	No	Unknown — not stated by the source
Mean time to failure (MTTF)Known for one	1400000 h	Unknown — not stated by the source
HP segmentKnown for one	Business	Unknown — not stated by the source
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V
Start-up currentKnown for one	Unknown — not stated by the source	2.8 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 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%
Operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 3048 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 12192 m
Operating shockKnown for one	Unknown — not stated by the source	63 G
Non-operating shockKnown for one	Unknown — not stated by the source	350 G
Packaging contentidentical
Storage drive adapter includedKnown for one	Unknown — not stated by the source	No
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101.6 mm
DepthKnown for one	Unknown — not stated by the source	146.9 mm
HeightKnown for one	Unknown — not stated by the source	26 mm
WeightKnown for one	Unknown — not stated by the source	580 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Other featuresidentical
Drive devices burst data transfer rate (DMA)Known for one	Unknown — not stated by the source	2
Drive devices burst data transfer rate (PIO)Known for one	Unknown — not stated by the source	4
Drive devices burst data transfer rate (Ultra DMA)Known for one	Unknown — not stated by the source	5
Compatible productsKnown for one	Z1 G2, Z230 SFF, Z230 Tower, Z440, Z640 & Z840	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.

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