Seagate IronWolf Pro ST16000NE000 16TB 3.5-Inch SATA Hard Drive

The Seagate IronWolf Pro ST16000NE000 is a 16TB internal hard drive in the 3.5-inch size, connected over SATA. The IronWolf Pro name is Seagate's line for network-attached storage, or NAS, which is the kind of always-on storage box used at home or in small offices for backups and shared files. The listing for this drive is brief, so this page sticks to what it states and explains what those terms generally mean.

What 16TB gives you

The listing gives the capacity as 16 TB. For a sense of scale, that is roughly 16,000 gigabytes, enough for large photo and video libraries, backups from several computers, or a media collection. Drive makers count a terabyte as one trillion bytes, so the capacity your operating system reports is usually a little lower.

In a multi-drive NAS, capacity is shared among the drives. Using RAID, which spreads or duplicates data across drives, usable space is typically less than the total of all the drives, because some is used for redundancy.

A mechanical drive, not an SSD

This is a mechanical hard disk, which stores data on spinning platters. Compared with a solid-state drive, it generally has much larger capacity per unit and is slower at random access, but it suits bulk storage where capacity matters more than speed. Because it has moving parts, it should be handled carefully and kept free from knocks and vibration, especially when it isn't mounted.

3.5-inch SATA

The listing describes the drive as 3.5" and SATA (SATA/600), meaning the SATA III interface with a 6Gb/s link. That is the standard connection for desktop and NAS bays. The drive measures about 5.8 x 4.0 x 1.0 inches and weighs around 1.45 lb. A 3.5-inch bay and a SATA data and power connection are required, and it will not fit a laptop's 2.5-inch slot.

Where it fits

Seagate positions the IronWolf Pro family for NAS use. Typically, NAS-oriented drives are designed to run for long periods and to work alongside other drives in a shared enclosure. The listing here doesn't give further details such as speed, cache, workload class or warranty terms, so check Seagate's documentation for those figures before relying on them.

Who it suits

It suits anyone building or expanding a NAS or a desktop with a free 3.5-inch bay and wanting a large amount of storage in a single drive. It is less relevant for a laptop or a small-form-factor PC without a 3.5-inch bay.

What to check before you buy

• Bay and connectors: confirm you have a free 3.5-inch bay, a SATA data port and a SATA power connector.
• NAS compatibility: check your NAS maker's compatibility list for 16TB drives, since some models have capacity limits.
• Backups: one drive is one point of failure. Keep a separate backup of anything important.
• Noise and heat: large mechanical drives can be audible and warm; check airflow and where the enclosure sits.
• Mounting hardware: screws or trays may not be included, so check the listing and your enclosure.
• Warranty and specs: look up the manufacturer's data sheet for speed, workload and warranty details.

The short version

• A 16TB, 3.5-inch internal SATA hard drive, model ST16000NE000.
• From Seagate's IronWolf Pro line, aimed at NAS use.
• A mechanical drive: large capacity, slower than an SSD.
• About 1.45 lb; needs a 3.5-inch bay with SATA connections.
• Check NAS compatibility and keep a separate backup.

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