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Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail, 4-Pack)

BH #SEST16000N4K
258 reviews
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Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail, 4-Pack)
Key Features
  • 16TB Storage Capacity per Drive
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 256MB Cache
This B&H Kit combines four Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDDs together for a total storage capacity of 64TB. These drives can serve a variety of functions. Install them in your host system, RAID, or NAS array, or keep them handy in case existing drives need to be replaced.
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Seagate Pro Internal HDD Overview

This B&H Kit combines four Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDDs together for a total storage capacity of 64TB. These drives can serve a variety of functions. Install them in your host system, RAID, or NAS array, or keep them handy in case existing drives need to be replaced.

High Performance
All-CMR (conventional magnetic recording) portfolio enables consistent, 24/7 performance, allowing users to access data virtually anytime, anywhere.
High Dependability
Up to a 550TB per year workload rating, a 2.5 million hours MTBF, and a limited 5-year warranty for a solid total cost of ownership (TCO).
Peace of Mind with Data Recovery
Seagate provides complimentary Rescue Data Recovery Services for three years, giving users a hassle-free, zero-cost data recovery experience.
IronWolf Health Management
Helps protect data with prevention, intervention, and recovery recommendations to ensure peak system health.
Optimized for NAS
Seagate's AgileArray technology provides dual-plane balancing, time-limited error recovery (TLER), and rotational vibration (RV) sensors to deliver top RAID performance in multi-bay environments.
UPC: 763649176276

Seagate Pro Internal HDD Specs

Key Specs
Total Capacity
16 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Read Speed
Maximum: 270 MB/s
Write Speed
Maximum: 270 MB/s
Total Capacity
16 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Performance
Read Speed
Maximum: 270 MB/s
Write Speed
Maximum: 270 MB/s
Encryption Support
No
Mean Time Between Failures (MTBF)
2.5 Million Hours
Endurance (Total Bytes Written)
550 TB
Electrical
Power Draw
7.6 W (Active)
5.0 W (Idle)
1.0 W (Standby)
Input Power
12 VDC at 2 A
General
Operating Conditions
32 to 149°F / 0 to 65°C
Operating Shock
50 G / 2.0 ms
Storage Conditions
-40 to 158°F / -40 to 70°C
Dimensions
5.79 x 4.01 x 1.03" / 146.99 x 101.85 x 26.11 mm
Weight
1.5 lb / 670 g
Packaging Info
Package Weight
1.75 lb
Box Dimensions (LxWxH)
10.2 x 6.1 x 2.9"

Seagate Pro Internal HDD Reviews

12TB IronWolf Pro 7200 rpm SATA III 3.5 HARD DRIVE, INTERNAL NAS HDD (CMR)

By Richard
Rated 5 out of 5
Date: 2026-08-03

I now have four IronWold 12TB hard drives and think they are the best hard drives I own. They are a little more expensive than the regular IronWolf 12TB hard drives but they have a limited 5 year warranty and a three year complementary data recovery service. They also are have a waiting of MTBF of 2.5 million hours and workload rate of 550TB per year. They seem pretty quiet and only the fan from my OWC four bay enclosure is noticeable.

Solid performance in my NAS

By Paul
Rated 5 out of 5
Date: 2026-06-21

Using 12 of these in my Qnap NAS and so far performance has been rock solid. Pleased with purchase so far I have not had any issues.

See any errors on this page?

What's the difference between buying multiple ...

What's the difference between buying multiple single drives vs the 2- or 4-pack?
Asked by: Matthew
There is no difference between the Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail, 4-Pack) and single packaged versions. This bundle is just for convenience when ordering sets of drives for a NAS or DAS.
Answered by: Alex D
Date published: 2024-12-04

Will this drive work on the Synology RS1221?

Will this drive work on the Synology RS1221?
Asked by: John
The Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail, 4-Pack) will be compatible with the Synology RS1221. Please note, compatibility will require the NAS to have been updated to the latest firmware if you have not already done so.
Answered by: Alex D
Date published: 2025-12-15

Will this work in the UGreen NAS

Will this work in the UGreen NAS
Asked by: Alex
Yes, this Seagate 24TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD is optimized for installation inside a NAS, including many of the enclosures made by UGreen.
Answered by: Jordan K
Date published: 2025-12-23

Does OWC support these Pro versions in their exte

Does OWC support these Pro versions in their external enclosures, [Merc Elite, Thunderbay] etc without power on/off issues?
Asked by: James
Yes. OWC products like the OWC ThunderBay 4 4-Bay Thunderbolt 3 RAID 5 Enclosure, BH #OWTB3SRKT0GB, https://bit.ly/47tfWUe, do support the Seagate 28TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR), BH #SEST28000NT0.
Answered by: Elchanan P
Date published: 2026-03-30

Is it compatible with DS718+?

Is it compatible with DS718+?
Asked by: Maheswar
The Seagate 24TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail, 2-Pack), B&H # SEST24000N2K, is not compatible with the DS718+.
Answered by: Miguel M
Date published: 2025-10-16

The Heading is for 48TB, but the Overview says ...

The Heading is for 48TB, but the Overview says "the 24TB IronWolf Pro 7200". Could you please check?
Asked by: Rajnesh
The Seagate IRONWLF PRO 48TB 3.5" 7200RPM SATA HDD, B&H # SEST24000N2K, is a kit that includes two Seagate 24TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDDs, B&H # SEST24000NT2.
Answered by: Kenneth C
Date published: 2024-07-14

The 20TB version of the HDD is running a little ...

The 20TB version of the HDD is running a little hot, up to +54°C. Is that normal?
Asked by: Rouslan
How can any electronic component have a normal operating temperature of 41 degrees Fahrenheit where normal ambient temperature of the room would be 70 degrees? The cold side of my air conditioner is not that good!
Answered by: Anonymous
Date published: 2026-01-09

Is the Seagate 20 TB Iron Wolf Pro listed on the ...

Is the Seagate 20 TB Iron Wolf Pro listed on the Synology DS1522+ approved list?
Asked by: Frank
The Seagate 20TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR), B&H # SEST20000NT1 is not on the approved drive list for the DS1522+ on Synology's website.
Answered by: Miguel M
Date published: 2023-11-27
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