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Silver 3.5 inch bare hard drive with exposed circuit board and SAS connector

Seagate

Seagate Exos X16 ST12000NM002G 12TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" internal hard drive

SKU CH-ACXB-K1KKZ MPN ST12000NM002G

12 TB enterprise SAS drive with 7200 RPM and 256 MB cache for high-capacity storage arrays

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity12TB
  • RPM7200 RPM
  • Cache256MB
  • Average Latency4.16ms

Options 12TB Exos X16

Struck-through versions exist but are not stocked here.

  • Enterprise-grade reliability backed by 2.5M-hr MTBF rating
  • 12TB capacity at 7200 RPM with 256MB cache for high throughput
  • SAS 12Gb/s interface enables fast data transfer in scale-out deployments
  • Helium-sealed design lowers power per terabyte and reduces weight
  • Seagate Secure features provide fast, affordable drive retirement and data protection

Enterprise 12 TB SAS drive

The Seagate Exos X16 ST12000NM002G is a 12 TB helium-sealed hard drive built for enterprise storage arrays. It runs at 7200 RPM with a 256 MB cache and connects through a SAS 12Gb/s interface. The 3.5 inch form factor fits standard server bays and the bare-drive packaging is intended for volume deployment.

Suited for high-capacity servers.

This drive suits administrators who need dense, reliable capacity for cloud or scale-out data-centre workloads. The helium design and PowerBalance feature optimise watts per terabyte, while Seagate Secure aids drive retirement. Buyers who require the low latency or high IOPS of solid-state storage should look elsewhere, as should anyone whose platform lacks a SAS controller or backplane.

SAS 12Gb/s interface decides compatibility

The single specification that determines fit is the SAS 12Gb/s interface; the drive will only operate in systems equipped with a compatible SAS host bus adapter or RAID controller. SATA-only backplanes cannot use this model, so verifying the host connection is essential before purchase.

Highlights

  • Enterprise-grade reliability backed by 2.5M-hr MTBF rating
  • 12TB capacity at 7200 RPM with 256MB cache for high throughput
  • SAS 12Gb/s interface enables fast data transfer in scale-out deployments
  • Helium-sealed design lowers power per terabyte and reduces weight
  • Seagate Secure features provide fast, affordable drive retirement and data protection

Specifications

BrandSeagate
SeriesExos X16
ModelST12000NM002G
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity12TB
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 weight0.66 kg
Package size169 × 131 × 33 mm

Other versions of this model

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Questions about this item

Should I choose the 12TB or 16TB Exos X16 model?

The 12TB ST12000NM002G gives 12TB usable space; the 16TB version provides 33% more petabytes per rack but is a different part number.

What does the 7200 RPM speed mean for real workloads?

7200 RPM with 4.16ms average latency and 256MB cache delivers the highest 16TB-class performance for cloud and massive scale-out data centre applications.

How does the SAS 12Gb/s interface limit transfer rates in practice?

SAS 12Gb/s caps the drive at 12 gigabits per second, optimised for large data transfers and low latency in enterprise storage arrays.

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