SEAGATE

Seagate IronWolf Pro 20TB 3.5" SATA Hard Drive 7200rpm

HDD size3.5
Power consumption (typical)7.7 W
Operating temperature (T-T)0 – 65 °C
Width101.85 mm

The Seagate IronWolf Pro ST20000NT001 is a 3.5-inch SATA hard drive built for continuous 24×7 operation, delivering 20TB of storage capacity for demanding multi-bay NAS and RAID environments where reliability under sustained workloads is non-negotiable.

Description

High-Capacity Storage Built for RAID and NAS

20TB capacity — handles large media libraries, backups, and data-intensive workloads without compromise
7200 RPM spindle speed — faster rotational speed for improved throughput compared to 5400 RPM desktop drives
256MB cache buffer — helps sustain consistent read/write performance across simultaneous multi-user access
3.5-inch SATA interface — fits standard desktop enclosures, tower servers, and multi-bay NAS units
Engineered for 24×7 continuous operation in multi-drive RAID configurations

The IronWolf Pro 20TB is well suited for small business file servers, surveillance storage systems, creative professional workstations, and enterprise NAS arrays where high capacity and around-the-clock availability are essential requirements.

Specifications

General

Brand	SEAGATE
Type	HDD
Component for	NAS
Operating shock	40
Non-operating shock	200
Non-operating vibration	2.27
Mean time to failure (MTTF)	2500000
Mean time between failures (MTBF)	2500000
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^15 bits read
EAN	8719706432276

Storage

HDD size	3.5
HDD speed	7200
HDD capacity	20000
HDD Family name	IronWolf Pro
Storage drive buffer size	256
Storage temperature (T-T)	-40 - 70
HDD interface transfer rate	6
HDD sustained transfer rate	285

Battery & power

Power consumption (typical)	7.7 W
Power consumption (standby)	1 W
Start-up current	2
Operating voltage	5 / 12
Power consumption (off)	1
Power consumption (idle)	5.5