Product comparison · 2 internal hard drives

Seagate Exos ST24000NM000C internal hard drive vs Seagate Constellation ST91000642SS-RF internal hard drive

15specifications compared
13differ
2identical
25known for one product only

Key differences

The Seagate Exos ST24000NM000C internal hard drive has 21 TB more HDD capacity than the Seagate Constellation ST91000642SS-RF internal hard drive (22 TB vs 1 TB). The Seagate Exos ST24000NM000C internal hard drive has 1" more HDD size than the Seagate Constellation ST91000642SS-RF internal hard drive (3.5" vs 2.5"). The Seagate Exos ST24000NM000C internal hard drive has 448 MB more storage drive buffer size than the Seagate Constellation ST91000642SS-RF internal hard drive (512 MB vs 64 MB). Interface: Serial ATA on the Seagate Exos ST24000NM000C internal hard drive, SAS on the Seagate Constellation ST91000642SS-RF internal hard drive. Operating voltage: 5 / 12 V on the Seagate Exos ST24000NM000C internal hard drive, 5 V on the Seagate Constellation ST91000642SS-RF internal hard drive.

HDD capacity
- Exos ST24000NM000C internal hard drive:22 TB
- Constellation ST91000642SS-RF internal hard drive:1 TB
HDD size
- Exos ST24000NM000C internal hard drive:3.5"
- Constellation ST91000642SS-RF internal hard drive:2.5"
Interface
- Exos ST24000NM000C internal hard drive:Serial ATA
- Constellation ST91000642SS-RF internal hard drive:SAS
Storage drive buffer size
- Exos ST24000NM000C internal hard drive:512 MB
- Constellation ST91000642SS-RF internal hard drive:64 MB
Operating voltage
- Exos ST24000NM000C internal hard drive:5 / 12 V
- Constellation ST91000642SS-RF internal hard drive:5 V
Operating temperature (T-T)
- Exos ST24000NM000C internal hard drive:10 - 60 °C
- Constellation ST91000642SS-RF internal hard drive:5 - 60 °C
Non-operating vibration
- Exos ST24000NM000C internal hard drive:2.27 G
- Constellation ST91000642SS-RF internal hard drive:3 G
Operating shock
- Exos ST24000NM000C internal hard drive:30 G
- Constellation ST91000642SS-RF internal hard drive:70 G

Side by side

Differences highlightedShow differences only

Comparison of ST24000NM000C, ST91000642SS-RF
40 specifications	A Seagate Exos ST24000NM000C internal hard drive Model ST24000NM000C View product	B Seagate Constellation ST91000642SS-RF internal hard drive Model ST91000642SS-RF View product
Features4 differ
HDD capacityDiffers	22 TB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	SAS
Type	HDD	HDD
Storage drive buffer sizeDiffers	512 MB	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	7.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	8.5 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
RefurbishedKnown for one	Unknown — not stated by the source	Yes
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Component forKnown for one	PC	Unknown — not stated by the source
HDD interface transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
HDD sustained transfer rateKnown for one	181 MiB/s	Unknown — not stated by the source
HDD average transfer rateKnown for one	190 MB/s	Unknown — not stated by the source
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	6.35 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	2 A
Power consumption (idle)Known for one	6.7 W	Unknown — not stated by the source
Power consumption (read)Known for one	10.5 W	Unknown — not stated by the source
Operational conditions4 differ
Operating temperature (T-T)Differs	10 - 60 °C	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 - 95%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationDiffers	2.27 G	3 G
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 shockDiffers	30 G	70 G
Non-operating shockDiffers	200 G	400 G
Weight & dimensions4 differ
WidthDiffers	101.8 mm	69.8 mm
DepthDiffers	147 mm	100 mm
HeightDiffers	26.1 mm	15 mm
WeightDiffers	695 g	200 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	4.69 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Quantity per packKnown for one	1 pc(s)	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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