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Silver 3.5 inch enterprise hard drive with SATA connectors

Seagate

Seagate Exos X18 ST16000NM000J 16TB 7200 RPM 256MB SATA 3.5" internal hard drive

SKU CH-YZTJ-6R8EP

Enterprise-class 16 TB SATA drive with 7200 RPM and 256 MB cache for high-capacity storage arrays

  • Total capacity16 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Mean latency4.16 ms
  • 16TB capacity stores massive datasets in a single 3.5" drive
  • 7200 RPM spindle speed delivers fast sequential access for enterprise workloads
  • 256MB cache buffers bursts to sustain high throughput
  • SATA 6.0Gb/s interface integrates directly into existing server backplanes
  • Helium-sealed design lowers power per terabyte and reduces weight

16TB SATA drive for enterprise storage

The Seagate Exos X18 ST16000NM000J provides 16TB of capacity on a SATA 6.0Gb/s interface. It spins at 7200 RPM with a 256MB cache for high-throughput workloads. The 3.5-inch form factor fits standard enterprise bays. This drive is built for cloud data centres and massive scale-out deployments.

Sustained throughput for large data transfers

The hyperscale SATA model is tuned for large data transfers and low latency during continuous operation. Enhanced caching supports reliable performance under heavy, sustained workloads. Average latency is 4.16ms. PowerBalance technology optimises watts per terabyte across long duty cycles.

Helium-sealed design reduces power and heat

A helium sealed-drive design lowers power draw and weight compared to conventional air-filled drives. Digital environmental sensors monitor internal conditions for optimal operation. Proven side-sealing weld technology adds handling robustness and leak protection. The drive measures 26.1mm in height.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $488.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 16 TB
Higher than about 92% of the 2,372 comparable items (median 2 TB).
Price per TB $30.56 per TB
Cheaper than about 82% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos X18
Model nameST16000NM000J
Total capacity16 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm

Questions about this item

How much power and heat does the 7200 RPM helium-sealed drive produce when running continuously?

The PowerBalance feature optimises watts per terabyte, and the helium sealed-drive design lowers power and weight for continuous operation in enterprise storage.

What host interface and cable does the SATA 6.0Gb/s 3.5" drive need to work?

It requires a SATA 6.0Gb/s port on the motherboard or controller, a SATA data cable and a standard SATA power connector from the power supply.

Will the 26.1 mm high 3.5" drive fit in the same bay and backplane as my older 3.5" SATA drives?

Yes, the 3.5" form factor with 26.1 mm maximum height matches standard 3.5" drive bays and SATA backplanes used by earlier SATA hard drives.

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