We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 3.5 inch enterprise hard drive bare unit

Seagate

Seagate Exos X18 16TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" ST16000NM000J

SKU CH-TB4D-RP3GW MPN ST16000NM000J

16 TB enterprise hard drive with 7200 RPM and 256 MB cache for high-capacity storage

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity16TB
  • NAND Flash Memory TypeHard Drive
  • RPM7200 RPM
  • Cache256MB

Options 16TB Exos X18

Struck-through versions exist but are not stocked here.

  • 16TB capacity fits more data per rack
  • 7200 RPM and 256MB cache deliver responsive throughput
  • SATA 6.0Gb/s interface integrates with existing infrastructure
  • Helium-sealed design lowers power per terabyte
  • 5M-hour MTBF rating supports continuous enterprise operation

Highest-capacity enterprise HDD

The Seagate Exos X18 is a 16TB 3.5-inch internal hard drive built for enterprise storage. It spins at 7200 RPM with a 256MB cache and connects through a SATA 6.0Gb/s interface. The helium-sealed design and PowerBalance feature optimise watts per terabyte for large-scale deployments.

Suited for hyperscale and cloud racks

This drive targets cloud data centres and massive scale-out environments that need maximum petabytes per rack. Buyers who require a different interface or a smaller form factor should consider other options. The bare-drive packaging means no accessories are included in the box.

Sustained throughput for large transfers

Hyperscale SATA tuning and enhanced caching deliver consistent performance during prolonged, large data transfers. Average latency is 4.16ms. Digital environmental sensors monitor internal conditions to maintain optimal operation under continuous load.

Highlights

  • 16TB capacity fits more data per rack
  • 7200 RPM and 256MB cache deliver responsive throughput
  • SATA 6.0Gb/s interface integrates with existing infrastructure
  • Helium-sealed design lowers power per terabyte
  • 5M-hour MTBF rating supports continuous enterprise operation

Specifications

BrandSeagate
SeriesExos X18
ModelST16000NM000J
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity16TB
NAND Flash Memory TypeHard Drive
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesMarket-leading 16TB HDD offering the highest capacity available for more petabytes per rack*
Highly reliable performance with enhanced caching, making it the logical choice for cloud data centre and massive scale-out data centre applications
Hyperscale SATA model tuned for large data transfers and low latency
PowerBalance feature optimises Watts/TB
Maximise total cost of ownership savings through lower power and weight with helium sealed-drive design
Proven helium side-sealing weld technology for added handling robustness and leak protection
Digital environmental sensors to monitor i
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Shipping weight0.67 kg
Package size147 × 102 × 26 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does my motherboard need a SATA 6.0Gb/s port to use the 16TB capacity of this ST16000NM000J?

Yes, the drive connects through a standard SATA 6.0Gb/s interface; a compatible port and cable are required for full throughput and capacity recognition.

Will this 7200 RPM Exos X18 work in the same 3.5-inch bay and power cables as my older desktop hard drives?

The drive uses the standard 3.5-inch form factor with SATA data and power connectors, so it fits existing bays and cables in most desktop chassis.

How can I verify the 256MB cache and 7200 RPM speed are active after installing the drive?

Check the drive details in your BIOS or use a tool such as CrystalDiskInfo; both will report the 256MB cache size and 7200 RPM rotational speed.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.