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Silver 3.5 inch bare hard drive with SAS connector and label showing 14TB capacity

Seagate

Seagate Exos X16 ST14000NM004G 14TB 7200 RPM 256MB SAS 12Gb/s 3.5" internal hard drive

SKU CH-WRSM-EHY5F MPN ST14000NM004G

Enterprise-class 14TB SAS drive spins at 7200 RPM with 256MB cache for high-density cloud and scale-out storage

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity14TB
  • NAND Flash Memory TypeHard Drive
  • RPM7200 RPM
  • Cache256MB

Options 14TB

  • 14TB capacity stores more data per drive
  • 7200 RPM and 256MB cache deliver high throughput
  • SAS 12Gb/s interface enables fast enterprise connectivity
  • 16ms average latency supports responsive access
  • 5-inch form factor fits standard server bays

Exos X16 14TB enterprise drive

The Seagate Exos X16 ST14000NM004G is a 14TB 3.5-inch internal hard drive built for enterprise storage. It spins at 7200 RPM with a 256MB cache and uses a SAS 12Gb/s interface. The drive is supplied as a bare unit for integration into servers and arrays.

SAS 12Gb/s interface limits

The SAS 12Gb/s link tops out at 12 Gbit/s per lane, so sustained throughput cannot exceed that ceiling. Average latency sits at 4.16ms, which is typical for 7200 RPM mechanics. The 512E and 4KN sector formats require host controller support for full capacity utilisation.

Bare drive installation notes

As a bare drive it ships without rails, cables or mounting brackets; installers must supply a compatible SAS backplane or HBA and 3.5-inch drive sleds. The 26.11mm height fits standard bays, but the 147mm length needs depth clearance. Firmware updates and encryption setup are common stumbling blocks during first deployment.

Highlights

  • 14TB capacity stores more data per drive
  • 7200 RPM and 256MB cache deliver high throughput
  • SAS 12Gb/s interface enables fast enterprise connectivity
  • 16ms average latency supports responsive access
  • 5-inch form factor fits standard server bays

Specifications

BrandSeagate
SeriesExos X16
ModelST14000NM004G
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity14TB
NAND Flash Memory TypeHard Drive
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesIndustry's first 16TB drive for 33% more petabytes per rack*
* Compared to 12TB competitive product
Highest 16TB hard drive performance with enhanced caching, making it perfect for cloud data center and massive scale-out data center applications
Hyperscale SATA model tuned for large data transfers and low latency
PowerBalance feature optimizes Watts/TB
Helium sealed-drive design delivers lower total cost of ownership through lower power and weight
Next-generation helium side-sealing weld technology for added handling robustness and leak protection
Digital environmental sensors to mon
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.11mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Shipping weight0.91 kg
Package size196 × 152 × 76 mm

Other versions of this model

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Questions about this item

How does the 14TB capacity compare to the 16TB maximum in the Exos X16 series?

The 14TB model provides slightly less raw capacity than the 16TB flagship while sharing the same 7200 RPM speed, 256MB cache and SAS 12Gb/s interface.

What sustained throughput can I expect from the 7200 RPM spindle and 256MB cache in a live array?

The 7200 RPM spindle and 256MB cache deliver the highest performance in the Exos X16 line, optimised for cloud data centres and massive scale-out workloads.

What real-world bandwidth does the SAS 12Gb/s interface provide and what limits it?

The SAS 12Gb/s interface supports up to 12 Gbit/s per port; actual throughput is capped by the 7200 RPM mechanics and the host controller capability.

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