WD Elements 20TB USB 3.0 Desktop External Hard Drive WDBWLG0200HBK-NESN Black

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Main image of Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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Alt view image 5 of 8 - Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Alt view image 6 of 8 - Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Alt view image 7 of 8 - Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Alt view image 8 of 8 - Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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7200 RPM 256MB Cache
SATA 6.0Gb/s
For Enterprise Storage
Retail or OEM packing may vary

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

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Model
Brand	Seagate
Series	Exos X18
Model	ST18000NM000J
Packaging	Bare Drive

Performance
Interface	SATA 6.0Gb/s
Capacity	18TB
NAND Flash Memory Type	Hard Drive
RPM	7200 RPM
Cache	256MB
Average Latency	4.16ms

Features
Features	Market-leading 18 TB HDD offering the highest capacity available for more petabytes per rack. Highly reliable performance with enhanced caching, making it the logical choice for cloud data centre and massive scale-out data centre applications. Hyperscale SATA model tuned for large data transfers and low latency. PowerBalance feature optimises Watts/TB. Maximise total cost of ownership savings through lower power and weight with helium sealed-drive design. Proven helium side-sealing weld technology for added handling robustness and leak protection. Digital environmental sensors to monitor internal drive conditions for optimal operation and performance. Data protection and security - Seagate Secure features for safe, affordable, fast and easy drive retirement.
Usage	For Enterprise Storage

Dimensions
Form Factor	3.5"
Height (maximum)	26.10mm
Width (maximum)	101.85mm
Length (maximum)	147.00mm

Additional Information
First Listed on Newegg	July 26, 2026

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Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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Item#: 9SIC7XHM2M8405

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Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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Customer Reviews of the Seagate ST18000NM000J

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Warranty, Returns, And Additional Information

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