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Seagate Exos 7E8 3.5-Inch Internal 4Kn SAS Enterprise Hard Drive
Perfect for mainstream bulk data storage

Seagate Exos 7E8 3.5-Inch Internal 512e SAS Enterprise Hard Drive

Sorry, this product is no longer available, please contact us for a replacement.


Exos EnterpriseOverview:

Trusted. Efficient. Versatile.

For everything Enterprise storage, there's Exos E-the safest and most powerful way to traverse the datasphere and harness its full potential. Always on and always working, the Exos E series of hard drives is loaded with advanced options for optimal performance, reliability, security and user-definable storage management. Built on generations of industry-defining innovation, Exos E is designed to work and perform consistently in enterprise-class workloads.

Enterprise Durability Within Reach

The Seagate Exos™ 7E8 enterprise hard drive confidently stores up to 8TB of data without sacrificing performance. The secure, high-capacity, high-performance drives are optimized for demanding enterprise bulk data applications.

Quickly access and store bulk-data with field-proven ninth-generation technology and dependably fast random performance in a standard and familiar 3.5-inch footprint.*

  • Up to 8TB capacity, SAS or SATA interface
  • Easy integration into replicated or RAID bulk storage systems
  • Supports enterprise-class nearline workloads of up 550TB/yr
  • Advanced Write Cache translates into the industry's best response times and the fastest data transfers
  • Seagate Secure™ capabilities ensure authentic and trusted products from a secure supply chain, available with hardware-based encryption (SED), Instant Secure Erase (ISE), TAA compliance and FIPS 140-2.

Best-Fit Applications

  • Hyperscale applications/cloud data centers
  • Massive scale-out data centers
  • OLTP and HPC applications
  • High-capacity density RAID storage
  • Mainstream enterprise external storage arrays
  • Distributed file systems, including Hadoop and Ceph
  • Enterprise backup and restore-D2D, virtual tape
  • Centralized surveillance

*Exos 7E8 is formerly known as Enterprise Capacity 3.5 HDD, version 5.0


Enterprise Drive for Bulk Data ApplicationsEnterprise Drive for Bulk Data Applications

Exos 7E8 hard drives support up to 8TB per drive,1 offering bulk data storage for data center infrastructures requiring a highly reliable enterprise hard drive. Exos 7E8 provides costeffective, reliable access to unstructured data. Built on field-proven 10th-generation conventional magnetic recording (CMR) technology, the Exos 7E8 drive helps to catalyze the datasphere, enabling data center architects and IT professionals to deliver trusted performance, rock-solid reliability, ironclad security, and low TCO for demanding 24x7 operations.

Robust Bulk Data Storage for a 24x7 World

Exos 7E8 drives are backed by a 2 million hour MTBF rating and support workloads of 550TB per year-10x that of desktop hard drives. With state-of-the-art cache, on-the-fly errorcorrection algorithms, and rotational vibration design, the Exos 7E8 helps ensure consistent performance in replicated and RAID multi-drive systems.

High Performance for Mainstream Data Center Applications

Meet your storage workload requirements in the most efficient and cost-effective data center footprint on the market today. The Exos 7E8 delivers easy integration into bulk storage systems with 12Gb/s SAS and SATA 6Gb/s interface options. With user-definable innovative technology advancements like PowerChoice™ and Seagate RAID Rebuild, you can tailor your nearline storage requirements for even greater improvements in lowering your TCO.

Seagate Secure

Enhanced Reliability, Data Protection, and Security

Advanced security features help protect data where it lives-on the drive. Exos 7E8 prevents unauthorised drive access and safeguards stored data with security features that include Secure Downloads & Diagnostics, TCG-compliant Self-Encrypting Drive, and government-grade FIPS/Common Criteria tamper-resistent hard drive.2 Seagate Secure™ drives simplify drive repurposing and disposal, help protect data-at-rest, and comply with corporate and federal data security mandates.


1 Seagate recommends validating your configuaration with your HBA/RAID controller manufacturer to ensure full capacity capabilities.
2 Self-Encrypting Drives (SED) are not available in all models or countries. May require TCG-compliant host or controller support.


Specifications - 4K Native SAS 8TB 6TB 4TB 2TB
Base Model ST8000NM003A ST6000NM030A ST4000NM004A ST2000NM005A
PowerBalance™ Model - - - -
Seagate Secure™ Model1 - - - -
Seagate Secure SED-FIPS Model1,2 ST8000NM011A ST6000NM034A - -
Protection Information (T10 DIF) Yes Yes Yes Yes
Humidity Sensor Yes Yes Yes Yes
SuperParity Yes Yes Yes Yes
Low Halogen Yes Yes Yes Yes
PowerChoice™ Technology Yes Yes Yes Yes
PowerBalance™ Technology Yes Yes Yes Yes
Cache, Multisegmented (MB) 256 256 256 256
Advanced Write Caching (Internal NOR flash) Yes Yes Yes Yes
Reliability / Data Integrity
Vibration, Nonoperating: 10Hz to 500Hz (Grms) 5 5 5 5
MTBF 2,000,000hr 2,000,000hr 2,000,000hr 2,000,000hr
Reliability Rating @ Full 24x7 Operation (AFR) 0.44% 0.44% 0.44% 0.44%
Nonrecoverable Read Errors per Bits Read, Max 1 sector per 10E15 1 sector per 10E15 1 sector per 10E15 1 sector per 10E15
Power-On Hours 8760 8760 8760 8760
Bytes per Sector 4096, 4160, 4224 4096, 4160, 4224 4096, 4160, 4224 4096, 4160, 4224
Limited Warranty (years) 5 5 5 5
Spindle Speed (RPM) 7200 7200 7200 7200
Interface Access Speed (Gb/s) 12.0, 6.0, 3.0 12.0, 6.0, 3.0 12.0, 6.0, 3.0 12.0, 6.0, 3.0
Max Sustainable Transfer Rate 249MB/s 226MB/s 226MB/s 226MB/s
Average Latency (ms) 4.16 4.16 4.16 4.16
Interface Ports Dual Dual Dual Dual
Rotation Vibration @ 1500 Hz (rad/s²) 12.5 12.5 12.5 12.5
Power Consumption
Idle Power (W) 7.97W 6.84W 5.79W 5.06W
Average Operating Power 13.18W 12.30W 11.12W 10.14W
Power Supply Requirements +12 V and +5 V +12 V and +5 V +12 V and +5 V +12 V and +5 V
Temperature, Operating (°C) 5°C - 60°C 5°C - 60°C 5°C - 60°C 5°C - 60°C
Shock, Operating Read/Write (Gs) 70/40Gs 70/40Gs 70/40Gs 70/40Gs
Shock, Nonoperating, 1ms/2ms (Gs) 150/300 150/300 150/300 150/300
Height (mm/in, max)3 1.028in/26.1mm 1.028in/26.1mm 1.028in/26.1mm 1.028in/26.1mm
Width (mm/in, max)3 4.010in/101.85mm 4.010in/101.85mm 4.010in/101.85mm 4.010in/101.85mm
Depth (mm/in, max)3 5.787in/147.0mm 5.787in/147.0mm 5.787in/147.0mm 5.787in/147.0mm
Weight (g/lb) 716g/1.58lb 693g/1.53lb 649g/1.43lb 620g/1.37lb
Carton Unit Quantity 20 20 20 20
Cartons per Pallet/Cartons per Layer 40 / 8 40 / 8 40 / 8 40 / 8

1 Self-Encrypting Drives (SED) and FIPS 140-2 Validated drives are not available in all models or countries. May require TCG-compliant host or controller support.
2 FIPS 140-2 Level 2 Certification in process.
3 These base deck dimensions conform to the Small Form Factor Standard (SFF-8201) found at For connector-related dimensions, see SFF-8223.


Front View
Left Angle View
Right Angle View
Inside View


Download the Seagate Exos 7E8 3.5-Inch Enterprise HDD Datasheet (.PDF)

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