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Seagate 12TB IronWolf 3.5" Internal NAS Drive (2-Pack)

BH #SEST12000V82
202 reviews
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Seagate 12TB IronWolf 3.5" Internal NAS Drive (2-Pack)
Key Features
  • 12TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 256MB Cache
Designed for use in 1-8 bay NAS environments within home, SOHO, and SMB environments, the 12TB IronWolf 7200 rpm SATA III 3.5" Internal NAS HDD (CMR) from Seagate is built to withstand 24x7 operations, or 8760 hours per year. This 12TB drive has been equipped with a SATA III 6 Gb/s interface, a rotational speed of 7200 rpm, a 3.5" form factor, and a 256MB cache, providing users with an ample storage capacity and data transfer speeds of up to 210 MB/s. This IronWolf hard drive also has an MTBF rating of 1 million hours, 600,000 load/unload cycles, 1 in 1015 non-recoverable read errors per bits read, and a workload rate of up to 180TB per year.
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Seagate Internal HDD Overview

Designed for use in 1-8 bay NAS environments within home, SOHO, and SMB environments, the 12TB IronWolf 7200 rpm SATA III 3.5" Internal NAS HDD (CMR) from Seagate is built to withstand 24x7 operations, or 8760 hours per year. This 12TB drive has been equipped with a SATA III 6 Gb/s interface, a rotational speed of 7200 rpm, a 3.5" form factor, and a 256MB cache, providing users with an ample storage capacity and data transfer speeds of up to 210 MB/s. This IronWolf hard drive also has an MTBF rating of 1 million hours, 600,000 load/unload cycles, 1 in 1015 non-recoverable read errors per bits read, and a workload rate of up to 180TB per year.

General Features
Optimized for NAS with AgileArray
AgileArray is built for dual-plane balancing and RAID optimization in multi-bay environments with advanced power management
IronWolf Health Management
IronWolf Health Management focuses on prevention, intervention, and recovery
Reduced Lag Times
Improved performance means reduced lag times or downtime for users during high traffic time for the NAS
Rotational Vibration (RV) Sensors
IronWolf comes standard with RV sensors to maintain high performance in multi-bay NAS enclosures
Multi-User Environments
IronWolf provides a workload rate of 180TB per year, which means that multiple users can upload and download data to the NAS server, knowning that IronWolf can handle the workload, whether you are a creative professional or small business
Designed for Always-On, Always-Accessible 24/7 Performance
Access data on your NAS virtually any time, whether remotely or on site
Cache Memory
IronWolf provides 256MB of cache memory, allowing your NAS to serve data faster
1.0 Million Hours MTBF | Limited 3-Year Warranty
This represents an improved total cost of ownership (TCO) over desktop drives with reduced maintenance costs
Designed for 24x7 Performance
Access your data on your NAS at virtually any time, whether remotely or on site
Best-Fit Applications
1-8 bay business network attached storage (NAS)
Desktop RAIDs and servers
Multimedia server storage
Private cloud
UPC: 763649121757

Seagate Internal HDD Specs

Key Specs
Total Installed Storage
12 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Read Speed
Maximum: 210 MB/s
Write Speed
Maximum: 210 MB/s
Total Installed Storage
12 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Performance
Read Speed
Maximum: 210 MB/s
Write Speed
Maximum: 210 MB/s
Encryption Support
No
Mean Time Between Failures (MTBF)
1.0 Million Hours
Endurance (Total Bytes Written)
180 TB
Electrical
Power Draw
7.8 W (Active)
5.0 W (Idle)
0.8 W (Standby)
Input Power
12 VDC at 1.8 A
General
Operating Conditions
32 to 149°F / 0 to 65°C
Operating Shock
70 G / 2.0 ms
Storage Conditions
-40 to 158°F / -40 to 70°C
Dimensions
5.78 x 4.01 x 1.02" / 146.81 x 101.85 x 25.91 mm
Weight
1.52 lb / 0.69 kg
Packaging Info
Package Weight
1.75 lb
Box Dimensions (LxWxH)
8.8 x 6.1 x 3"

Seagate Internal HDD Reviews

Doubled in Price

By Michael
Rated 3 out of 5
Date: 2026-05-14

These drives have almost doubled in price since the end of 2025! They are great but I'm not buying them anymore. I need archive drives to offload media and then it sits on a shelf. Since these drives won't have heavy hours put on them, I'm going with a 10TB WD drive for $150 cheaper.

Yeah, still worth it even with prices being what they are

By Josiah
Rated 5 out of 5
Date: 2026-03-22

It is what it is. This used to be ~$17/TB, and now it's $25/TB. But what, am I going to buy Western Digital? No way! Blame AI I guess. These keep humming along in my Synology NAS. I haven't had one fail yet but I keep ripping blu-rays to watch. It's my own fault for having all this data, but the 12TB IronWolf does the trick. Buy it while you still can.

See any errors on this page?

this version is ST12000VN0008? i need this ...

this version is ST12000VN0008? i need this especific version to my NAS DS920+
Asked by: miguel
The manufacturer's part number for this Seagate 12TB IronWolf 3.5" Internal NAS Drive is ST12000VN0008.
Answered by: Calvin M
Date published: 2025-01-02

Will this Seagate 4TB IronWolf 5900 rpm SATA III ...

Will this Seagate 4TB IronWolf 5900 rpm SATA III 3.5" Internal NAS HDD work properly in a Promise Pegasus R6?
Asked by: Carlos E.
The Seagate 4TB IronWolf 5400 rpm SATA III 3.5" Internal NAS HDD, B&H # SET4000VN006, is compatible with the Promise Pegasus R6.
Answered by: Miguel M
Date published: 2025-04-29

It is stated as Seagate 4TB IronWolf 5400 rpm, ...

It is stated as Seagate 4TB IronWolf 5400 rpm, but in the spec it says 5900rpm? So am I buying 5400rpm or 5900rpm?
Asked by: HIKAA
The Seagate 4TB IronWolf 5400 rpm SATA III 3.5" Internal NAS HDD is a 5400 RPM drive.
Answered by: Kenneth C
Date published: 2023-07-18

is this a total of 8tb or 32tb?

is this a total of 8tb or 32tb?
Asked by: Craig
The Seagate 8TB IronWolf 7200 rpm SATA III 3.5" Internal NAS HDD (OEM, 4-Pack) comes with four 8TB drives, which would be 32TB in total.
Answered by: Michael S
Date published: 2025-11-17

Will the 8TB work in the LaCie 2 Big Raid?

Will the 8TB work in the LaCie 2 Big Raid?
Asked by: Connor
The Seagate 8TB IronWolf 7200 rpm SATA III 3.5" Internal NAS HDD (OEM) would work on a Lacie 2 big raid
Answered by: Luiz O
Date published: 2021-12-21

does it need separate power or will it work with ...

does it need separate power or will it work with a SATA to USB cable? I have a SATA cable for my internal SSDs I use for video and doesn't require external power.
Asked by: Che
An external power source or enclosure will be required to use this drive with a USB port, because a USB port will not be able to provide enough power to run the drive.
Answered by: Calvin M
Date published: 2022-08-15

Is the version of ST12000VN0008 that you are ...

Is the version of ST12000VN0008 that you are shipping compatible with the Synology DS224+ ?
Asked by: John
Yes, this Seagate 12TB IronWolf 3.5" Internal NAS Drive, B&H # SEST12000V8, is compatible with the Synology DS224+ NAS.
Answered by: Kenneth C
Date published: 2023-12-28

What is the maximum temperature these drives can ...

What is the maximum temperature these drives can safely operate at for extended timeframes?
Asked by: DK
The Seagate 8TB IronWolf 7200 rpm SATA III 3.5" Internal NAS HDD (OEM), B&H # SEST8000VN4, is designed with an operating temperature of 32°F to 149°F (0°C ambient to 65°C drive reported). The maximum allowable drive reported temperature is 149°F (65°C). It is not recommended to operate at sustained temperatures above 60°C, higher temperatures can affect drive health.
Answered by: Miguel M
Date published: 2023-12-12
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