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Silver 3.5 inch enterprise hard drive with helium-sealed label

Seagate

Seagate Exos X16 16TB SAS 12Gb/s 3.5" internal hard drive ST16000NM002G

SKU CH-ETA3-QHTPX

A 16 TB enterprise hard drive with a SAS 12Gb/s interface, 7200 RPM speed and a helium-sealed design for server storage arrays

  • Total capacity16 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Recommended useFor Enterprise Storage
  • Enterprise storage ready with 16 TB capacity and SAS 12 Gb/s interface
  • Helium-sealed design reduces friction for 7200 RPM reliability
  • Low idle power of 5.0 W cuts energy costs in data centres
  • Rated 2.5 million hours MTBF with 0.35 % AFR for long-term operation
  • 256 MB cache and 261 MB/s max read speed accelerate heavy workloads

Enterprise 16TB SAS drive

This Seagate Exos X16 is a 16TB helium-sealed hard drive built for enterprise storage arrays. It spins at 7200 RPM with a 256MB cache and connects through a SAS 12Gb/s interface. The 3.5-inch form factor fits standard server drive bays and supports hot-plug installation.

Suited for RAID arrays and bulk archives

IT teams managing high-capacity RAID sets, backup targets or video surveillance storage will benefit from the 2.5 million-hour MTBF and 550TB annual workload rating. Systems without a SAS controller or without server-class cooling cannot use this drive.

SAS 12Gb/s interface requirement

The drive communicates exclusively over a 12Gb/s SAS link, so the host controller must provide a compatible SAS port. Without that specific interface the drive will not function, regardless of available power or bay space.

How it compares

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

Price $391.99
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 $24.50 per TB
Cheaper than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Total capacity16 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Should I pick the 16TB helium model or a smaller air-filled drive?

The 16TB helium-sealed design lowers drag and power draw to 5.0 W idle and 10.2 W active while keeping 7200 RPM performance.

What does the 261 MB/s maximum read speed mean once the drive is in a server?

That is the peak sequential throughput; random workloads drop to 170 read IOPS and 440 write IOPS with 4.2 ms latency.

Will the SAS 12Gb/s interface run at full speed on my controller?

The SAS 12Gb/s link caps at 12 Gb/s, but actual throughput depends on the controller and backplane negotiation.

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