Product comparison · 2 internal hard drives

Seagate IronWolf Pro ST4000NE0025 internal hard drive vs Seagate IronWolf Pro ST6000NE0021 internal hard drive

Key differences

HDD capacity
- IronWolf Pro ST4000NE0025 internal hard drive:4 TB
- IronWolf Pro ST6000NE0021 internal hard drive:6 TB
Storage drive buffer size
- IronWolf Pro ST4000NE0025 internal hard drive:128 MB
- IronWolf Pro ST6000NE0021 internal hard drive:256 MB
Power consumption (typical)
- IronWolf Pro ST4000NE0025 internal hard drive:8.5 W
- IronWolf Pro ST6000NE0021 internal hard drive:9 W
Power consumption (idle)
- IronWolf Pro ST4000NE0025 internal hard drive:5.45 W
- IronWolf Pro ST6000NE0021 internal hard drive:7.6 W
Non-operating vibration
- IronWolf Pro ST4000NE0025 internal hard drive:3 G
- IronWolf Pro ST6000NE0021 internal hard drive:5 G
Non-operating shock
- IronWolf Pro ST4000NE0025 internal hard drive:300 G
- IronWolf Pro ST6000NE0021 internal hard drive:250 G
Weight
- IronWolf Pro ST4000NE0025 internal hard drive:680 g
- IronWolf Pro ST6000NE0021 internal hard drive:780 g

Differences highlightedShow differences only

Comparison of ST4000NE0025, ST6000NE0021
29 specifications	A Seagate IronWolf Pro ST4000NE0025 internal hard drive Model ST4000NE0025 View product	B Seagate IronWolf Pro ST6000NE0021 internal hard drive Model ST6000NE0021 View product
Features2 differ
HDD capacityDiffers	4 TB	6 TB
Component forKnown for one	NAS	Unknown — not stated by the source
Storage drive buffer sizeDiffers	128 MB	256 MB
HDD sustained transfer rateKnown for one	25.51 MiB/s	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	8.5 W	9 W
Power consumption (idle)Differs	5.45 W	7.6 W
Operational conditions2 differ
Non-operating vibrationDiffers	3 G	5 G
Non-operating shockDiffers	300 G	250 G
Weight & dimensions1 differ
WeightDiffers	680 g	780 g
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.