Seagate Exos 2X18 internal hard drive 18 TB 7200 RPM 256 MB 3.5" SAS

Seagate manufactures hard drives that specifically address the needs of the hyperscale storage market. As the highest-performing hard drive in the Seagate® X class, the Exos® 2X18 enterprise dual-actuator hard drive utilizes MACH.2™ technology enabling up to 2×the performance of an enterprise single-actuator 3.5-inch hard drive.

Specifications

Hard drive
Component for	Disk array
HDD interface transfer rate	12 Gbit/s
Average latency	4.16 ms
Mean time between failures (MTBF)	2500000 h
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	18 TB
Features
Type	HDD
Component for	Disk array
HDD interface transfer rate	12 Gbit/s
Interface	SAS
Average latency	4.16 ms
Mean time between failures (MTBF)	2500000 h
HDD speed	7200 RPM
HDD size	3.5"
HDD capacity	18 TB
Storage drive buffer size	256 MB
Uncorrectable Bit Error Rate (UBER)	< 1 per 10^15 bits read
Rotational Vibration (RV) sensors	Yes
24/7 operation	Yes
Power
Power consumption (write)	9.6 W
Power consumption (read)	11.5 W
Power consumption (idle)	8 W
Operating voltage	5 / 12 V

Operational conditions
Operating temperature (T-T)	5 - 60 °C
Operating vibration	2.27 G
Operating shock	40 G
Non-operating shock	200 G
Technical details
Interface	SAS
Mean time between failures (MTBF)	2500000 h
Weight & dimensions
Width	101.8 mm
Weight	665 g
Height	26.1 mm
Depth	147 mm
Other features
Interface	SAS

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SKU	ST18000NM0272	881457-B21	WD161KRYZ	ST18000NM004J	ST18000NM000J	ST16000NM004J
Manufacturer	SEAGATE	HPE	WESTERN DIGITAL	SEAGATE	SEAGATE	SEAGATE
HDD capacity	over 2.5 TB	≈ 2 TB	over 2.5 TB	over 2.5 TB	over 2.5 TB	over 2.5 TB
Interface	SAS	N/A	Serial ATA	SAS	Serial ATA III	SAS
Type	HDD	N/A	HDD	HDD	HDD	HDD
HDD speed	7200RPM to 10000RPM	10000RPM to 15000RPM	7200RPM to 10000RPM	7200RPM to 10000RPM	7200RPM to 10000RPM	7200RPM to 10000RPM
HDD size	3.5 "	2.5 "	3.5 "	3.5 "	3.5 "	3.5 "
Component for	Disk array	Server/workstation	PC	Disk array	Disk array	Server/workstation