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Seagate Exos X18 16TB SATA 6Gb/s 7200RPM 256MB Cache (512e / 4Kn) Enterprise 3.5-inch Internal Hard Drive - ST16000NM000J

Seagate Exos X18 16TB SATA 6Gb/s 7200RPM 256MB Cache (512e / 4Kn) Enterprise 3.5-inch Internal Hard Drive - ST16000NM000J

Part Number: ST16000NM000J
Manufacturer: Seagate

Condition: Refurbished

Weight: 1.4 lbs

AvailabilityIn stock

Regular price $575.00
Regular price Sale price $575.00
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Seagate Exos X18 16TB SATA 6Gb/s Enterprise Hard Drive

The Seagate Exos X18 ST16000NM000J is a 16TB enterprise-class SATA 6Gb/s hard drive designed for hyperscale data centers and enterprise storage deployments. Delivering up to 261 MB/s sustained transfer rate with 512e/4Kn sector format support and a 2.5 million hour MTBF, it provides the capacity, performance, and reliability required for continuous 24/7 operation.

Key Features

  • 16TB enterprise capacity for high-density data center storage
  • SATA 6Gb/s interface for broad compatibility
  • Up to 261 MB/s sustained transfer rate
  • 512e and 4Kn sector format support
  • 2.5 million hour MTBF — enterprise-grade reliability
  • PowerChoice technology for energy efficiency
  • 7200RPM with 256MB cache

Product Specifications

  • Part Number: ST16000NM000J
  • Manufacturer: Seagate
  • OEM Status: Retail
  • Capacity: 16TB
  • Interface: SATA 6Gb/s
  • Form Factor: 3.5-inch
  • Spindle Speed: 7200RPM
  • Cache: 256MB
  • Sector Format: 512e / 4Kn

Storage Specifications

  • Recording Technology: CMR
  • Buffer Size: 256MB
  • Average Latency: 4.16ms

Performance Specifications

  • Max Sustained Transfer Rate: Up to 261 MB/s
  • MTBF: 2.5 million hours
  • AFR: 0.35%
  • Workload Rate: 550TB/year
  • Warranty: 5-year limited

Use Cases

  • Hyperscale data center bulk and cold storage
  • Enterprise NAS and object storage deployments
  • Cloud storage infrastructure
  • Backup and archival storage tiers
  • High-density storage server builds

Compatibility

  • Compatible with SATA 6Gb/s and SATA 3Gb/s controllers
  • Fits standard 3.5-inch LFF drive bays
  • Compatible with enterprise NAS and storage arrays supporting SATA LFF drives

Frequently Asked Questions

What is the difference between Exos X18 16TB and 18TB?
Both share the same platform and specifications. The 16TB (ST16000NM000J) offers slightly lower capacity at the same performance and reliability level — suitable when 18TB is not required or for cost optimization.
Does this drive use SMR or CMR?
The Exos X18 uses CMR (Conventional Magnetic Recording), providing consistent write performance for enterprise workloads.
Is this suitable for RAID configurations?
Yes, the Exos X18 is enterprise-rated for RAID environments with a 550TB/year workload rating and TLER (Time-Limited Error Recovery) support.

The Seagate Exos X18 ST16000NM000J delivers 16TB of enterprise SATA storage with 261 MB/s sustained throughput, CMR recording, and 2.5 million hour MTBF — a reliable high-capacity SATA hard drive for enterprise data centers and bulk storage deployments.

Frequently Asked Questions

Why do I see an incorrect image for this item?

Product images are meant for illustrative purposes alone, and you may not always see the original image.

What do you mean by term Refurbished?

Refurbished means a used computer part or device that has been cleaned, checked, and repaired to make sure it works properly again. Unlike regular second-hand items, refurbished products go through testing and fixing so they can perform like new.

How many days does it take to ship goods to customers?

All orders are processed within 1-2 business days. Orders placed on weekends or public holidays will be processed on the next business day. For more info visit shipping policy.

What is your return policy?

Our Return Policy comprises a 30-day warranty for Refurbished products. There will be a restocking fee applied when you return non-defective returns. For further details, kindly take a look at our Return Policy page.

Do you deliver my ordered items in their original retail box?

For Brand New items, you will receive them in their original retail box. For Refurbished items, you will receive them in a Brown Box or Bulk Packaging.

Do your printers come with ink cartridges?

Refurbished printers do not come with ink cartridges or toners.