Seagate IronWolf Pro ST20000NT001 internal hard drive 20 TB 7200 RPM 256 MB 3.5"

IronWolf Pro drives are engineered to deliver 24×7 performance, reliability, and dependability in multi-bay, multi-user commercial and enterprise RAID storage solutions. Total peace of mind with five-year limited warranty, complimentary three-year Rescue Data Recovery Services, and IronWolf Health Management.

HDD capacity	20 TB
HDD speed	7200 RPM
Storage drive buffer size	256 MB
HDD size	3.5"
Type	HDD
Component for	NAS
HDD interface transfer rate	6 Gbit/s
HDD sustained transfer rate	285 MiB/s
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^15 bits read
Rotational Vibration (RV) sensors	Yes
Workload rate limit	550 TB/year
Noise level (idle)	20 dB
Mean time to failure (MTTF)	2500000 h
Mean time between failures (MTBF)	2500000 h
Power consumption (typical)	7.7 W
Power consumption (standby)	1 W
Power consumption (off)	1 W
Power consumption (idle)	5.5 W
Operating voltage	5 / 12 V
Start-up current	2 A
Operating temperature (T-T)	0 - 65 °C
Storage temperature (T-T)	-40 - 70 °C
Non-operating vibration	2.27 G
Operating shock	40 G
Non-operating shock	200 G
Width	101.8 mm
Height	26.1 mm
Depth	147 mm
Weight	670 g