Seagate

Seagate Exos X18 18TB Enterprise HDD 7200RPM SATA

4.4 (2202 reviews)

Maximize Storage Capacity with the Seagate Exos X18 18TB Enterprise HDD The Seagate Exos X18 enterprise HDD is designed for maximum storage capacity and rack-space efficiency. Protected with Seagate Secure™ technology and delivering up to 18TB, the Exos X18 is tuned for large data transfers and l...

$349.99*$399.99Save 12%
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Maximize Storage Capacity with the Seagate Exos X18 18TB Enterprise HDD

The Seagate Exos X18 enterprise HDD is designed for maximum storage capacity and rack-space efficiency. Protected with Seagate Secure™ technology and delivering up to 18TB, the Exos X18 is tuned for large data transfers and low latency.

Specifications:

  • Capacity: 18TB
  • Form Factor: 3.5 Inch
  • Interface: SATA 6Gb/s
  • RPM: 7200 RPM
  • Sector Size: 512e and 4Kn FastFormat

Key Features

SCALABLE: Run big data applications to meet hyperscale demands

EFFICIENT: Get consistent performance with low latency and repeatable response times with enhanced caching

HIGH CAPACITY: Support data analytics capabilities and other dense architectures for highest rack-space efficiency

COST EFFECTIVE: Optimize TCO with the lowest cost per terabyte

RELIABLE: Enjoy extended reliability with 2.5M-hour MTBF and 5-year limited warranty

The available storage capacity may vary.

Specifications

Capacity
18TB
Type
Enterprise HDD
RPM
7200RPM
Interface
SATA
MTBF
2.5M hours
Warranty
5-year limited
Feature
Enhanced Caching

Pros & Cons

👍 Pros

  • Designed for scalability, effectively supporting big data applications and hyperscale demands.
  • Delivers consistent performance with low latency and repeatable response times due to enhanced caching.
  • Offers high capacity, supporting data analytics capabilities and other dense architectures for rack-space efficiency.
  • Optimizes Total Cost of Ownership (TCO) with its lowest cost per terabyte proposition.
  • Provides extended reliability with a 2.5 million-hour Mean Time Between Failures (MTBF) and a 5-year limited warranty.

👎 Cons

  • The large 18TB capacity might be excessive for users with modest storage needs, leading to higher initial cost.
  • As an enterprise HDD, its features and price point are tailored for specialized data center environments.
  • The "lowest cost per terabyte" claim is specific to its enterprise segment and may not apply to consumer drives.
  • While reliable, the 2.5M-hour MTBF is an average and does not guarantee individual unit longevity.
  • The available storage capacity may vary, which could lead to minor discrepancies from the advertised 18TB.

Frequently Asked Questions

The Seagate Exos X18 offers a high storage capacity of 18TB, suitable for demanding data environments.
This is an Enterprise HDD, specifically designed to meet hyperscale demands and support big data applications.
The Seagate Exos X18 is designed to provide consistent performance with low latency and repeatable response times, thanks to enhanced caching.
It offers extended reliability with a 2.5 million-hour MTBF (Mean Time Between Failures) and is backed by a 5-year limited warranty.
This enterprise hard drive utilizes a SATA interface for connectivity.