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Seagate Exos X12 12TB SATA III 3.5" Hard Drive

CCL Code: HDD2934
Manufacturer Code: ST12000NM0007
Manufacturer: Seagate
Seagate Exos X12 12TB SATA III 3.5" Hard Drive

Formally Enterprise Capacity 3.5

Key Features:

  • 12TB Capacity
  • 7200RPM Spin Speed
  • SATA III Interface
  • 256MB Cache
  • 3.5" Form Factor
  • 5 Year Warranty


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Scales to Meet Your Growing Capacity Needs

Seagate Exos X12 enterprise hard drives offer the highest rack space efficiency — up to 10PB of data in a single 42U rack. Enhanced caching makes it perfect for Big Data applications, providing the fastest hard drive data transfers in the datasphere. Hyperscale SATA models are tuned for large data transfers, providing low latency. You can easily customise your bulk storage requirements with innovative technology advancements (PowerBalance™, PowerChoice™ and RAID Rebuild®). Exos X12 drives help provide low data centre TCO, and are architected to offer low power and weight. Simplified infrastructure management is possible with FastFormat™ advanced format feature (4Kn and 512e). Advanced Write Caching helps ensure rapid response rates with a 20% boost in random write performance.1

Innovative Helium Design

The Exos X12 hard drive is built on a rock-solid sealed-drive design. A wrought-aluminium base and a helium sealed-drive design with no porosity and uniform density are designed with superior material and wide-weld design for a more robust, hermetically sealed-drive enclosure. Exos X12 hard drives incorporate digital environmental sensors for measuring pressure in the drive, helping to ensure high reliability, performance and quality.

Enhanced Enterprise Reliability, Data Protection and Security

Seagate is the industry leader in data-at-rest protection with the broadest offering of technologies to help ensure reliable, trusted products. Seagate Secure™ models provide hardware-based security to help protect data-at-rest. With Instant Secure Erase, drive retirement is safe, affordable, fast and easy. Seagate Secure models meet the NIST 800-88 media sanitisation specification and support the Trusted Computer Group (TCG) standard.2 The X class Exos X12 hard drive is a proven, enterprise-class hard drive with maximum reliability backed by a 2.5 million hour MTBF.

1 Compared to 8 TB competitive product
2 Seagate Secure models not available in all countries. May require TCG-compliant host or controller support.

Main Features

  • Store up to 10 PB in a single 42U rack with helium-sealed drive technology
  • Advanced Write Caching provides a 20% boost over previous generation drives in random write performance
  • Industry's best-in-class power efficiency: up to 21% greater IOPS/watt vs. other 12 TB models
  • Customise your bulk storage requirements with PowerChoice and RAID Rebuild
  • 550 TB/yr - 10x the workload rating of desktop drives
  • Seagate Secure encryption technology protects data-at-rest, meets the NIST 800-88 media sanitisation standard
  • Best-in-class enterprise drives
  • Innovative Helium Design
  • Scales to meet your growing capacity needs
  • Enhanced enterprise reliability, data protection and security
  • Single Interface Port

Hard Disk

Drive Capacity 12000 GB
Drive Size 3.5 Inches
Disk Speed 7200RPM
Data Buffer/RAM 256 MB
Heads 16
Bytes per Sector 512


Average Latency 4.16 ms


Power Requirement Spin Up (Max) 7.8 Watts
Power Requirement Idle (Ready) 5.0 Watts


Operating Temperature 5 to 60 °C
Non Operating Temperature -40 to 70 °C
Relative Humidity 5 to 95 %
Shock (Operating) 70Gs
Shock (Non Operating) 250
Vibration (Operating) 0.25G (5 to 22Hz, 350 to 500Hz), 0.50G (22 to 350Hz)
Vibration (Non-Operating) 2.27
Acoustics (Seek Mode) 3.2 dB
Acoustics (Idle Mode) 2.8 dB
Altitude (Operating) -304.8 to 3048 m
Altitude (Non-Operating) -304.8 to 12,192 m
Temperature Gradient 20 °C per hour


Form Factor Hard Drive
Enclosure type Internal
Pack Quantity 1
Width 10.19 cm
Depth 14.7 cm
Height 2.61 cm
Weight 0.705 kg
Barcode 0763649089729


Warranty 5 years limited.

Key Features

Disk Capacity 12 TB
Interface Type SATA III
Main Colour Silver
Drive Interface SATA III
Cache Memory 256 MB
Disk Form Factor 3.5
Interface Type SATA III
Condition New
HDD Purpose Enterprise



Item Details

Manufacturer Seagate
Manufacturer Code ST12000NM0007
EAN 7636490077043
UPC 763649089729
Condition New

Warranty Information

Warranty 5 years limited.

Manufacturer Information

Manufacturer Seagate
Manufacturer Code ST12000NM0007

Do you have you a question about the Seagate Exos X12 Enterprise 3.5 inch Hard Drive (12TB) SATA 6Gb/s 7200RPM 256MB (Internal) - SATA Standard Model (512e)?

5 / 5 1 review


March 2019

Very nice hard drive lots of space for what I use it for bought 2 and looking to by 2 more soon very worth while just a bit expensive.

PDF Datasheets and Manuals

Document File type File size
Data Sheet pdf