Seagate 18TB Exos X18 7200 rpm SATA III 3.5" Internal HDD

Product #96900 | SKU ST18000NM000J | Seagate
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Our Price $829.00
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  • 18TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 256MB Cache
  • 7200 rpm


The Seagate 18TB Exos X18 7200 rpm SATA III 3.5" Internal HDD is a high-performance, large-capacity drive designed for data storage. It's great for engineering workstations, network servers, mainframes, supercomputers, and other demanding tasks that require 24/7 operation. This 7200-rpm drive utilises the SATA III 6 Gb/s interface for data transfer rates of up to 270 MB/s.

Key Features:

  • An 18TB drive offers high capacity for more petabytes per rack
  • Highly reliable performance with enhanced caching, making it the logical choice for cloud data center and massive scale-out data centre applications
  • Hyperscale SATA model tuned for large data transfers and low latency
  • PowerBalance optimises watts per terabyte
  • Maximise total cost of ownership savings through lower power and weight with a helium sealed-drive design
  • 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
  • Proven enterprise-class reliability backed by a limited 5-year warranty and 2.5 million hour MTBF rating


Buffer 256 MB
Write Speed Random: 550 IOPS 4 KB Files
Read Speed Maximum: 270 MB/s
Random: 170 IOPS 4 KB Files
Latency 4.1 ms
Drive Type HDD
Form Factor 3.5"
HDD Specs
Spindle Speed (RPM) 7200 RPM
Disk Sector Format 512e
Reliability / Data Integrity
Annualised Failure Rate (AFR) 0.35 %
Mean Time Between Failures (MTBF) 2.5 Million Hours
Non-Recoverable Read Errors per Bits Read 1 in 1015
Power Draw 5.3 W (Idle)
9.4 W (Active)
6.4 W (Active)
Supported Voltage 5 VDC, 12 VDC
Operating Shock 50 G / 2.0 ms
Storage Shock 200 G / 2.0 ms
Storage Vibration 2.27 G / 2 to 500 Hz
Operating Temperature 41 to 140°F / 5 to 60°C
Operating Humidity 5 to 95%
Dimensions (W x H x D) 101.85 x 26.11 x 147 mm
Weight 0.67 kg

In The Box

  • Seagate 18TB Exos X18 7200 rpm SATA III 3.5" Internal HDD


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  • Product: Seagate 18TB Exos X18 7200 rpm SATA III 3.5" Internal HDD
  • Manufacturer: Seagate
  • Model: ST18000NM000J
  • SKU: ST18000NM000J
  • RM Product #: 96900

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