Designed to deliver performance, reliability, and dependability in multi-bay, multi-user RAID and NAS environments within commercial and enterprise settings, the Seagate 4TB IronWolf Pro NAS HDD 7200 RPM SATA IIIfrom Seagate 4TB IronWolf Pro NAS HDD 7200 RPM SATA IIIis built to withstand 24/7 operation, or 8760 hours per year. This 4TB 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 ample storage capacity with data transfer speeds of up to 250 MB/s. The IronWolf Pro also has an MTBF rating of 2 million hours and a workload rate of up to 550TB per year. Seagate's AgileArray technology provides dual-plane balancing, time-limited error recovery (TLER), and rotational vibration (RV) sensors to deliver enhanced RAID performance. Included is a limited 3-year Data Recovery Service that helps you retrieve damaged data in the event of a mechanical error, accident, or natural disaster, and overall protection is provided by a limited 5-year warranty.

4TB Storage Capacity per Drive    3.5" Form Factor    SATA III 6 Gb/s Interface    256MB Cache    7200 rpm    Up to 250 MB/s Data Transfer Rate    2 Million Hours MTBF    Workload Rate: 550TB per Year    AgileArray Technology    Seagate Rescue Data Recovery

All-CMR (conventional magnetic recording) portfolio enables consistent, 24/7 performance, allowing users to access data virtually anytime, anywhere.

Up to a 550TB per year workload rating, a 2 million hours MTBF, and a limited 5-year warranty for a solid total cost of ownership (TCO).

Seagate provides complimentary Rescue Data Recovery Services for three years, giving users a hassle-free, zero-cost data recovery experience.

Helps protect data with prevention, intervention, and recovery recommendations to ensure peak system health.

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.

Related Questions and Answers

Q: 1. I’m a professional photographer and all of my images are stored via these large drives. My operating system is on a ssd, and when I first bring images in they are processed on my ssd drive. But one I store them, they are still accessed by my software (Lightroom and other Adobe products), and often I’m still retrieving, searching for and editing the images long after they were moved off my ssd drive. This drive will be wired directly into my mother board and PC that has 4 storage drives. What are the pros of the following two drives and cons for my situation. Which would you recommend? Thank you.

A: I think your question boils down to a comparison of an SSD vs a HDD. For backup there are many reasons to go with a hard drive. Price, Capacity. For the OS and Applications - we would suggest SSDs.

Q: 2. warranty?

A: This Seagate 6TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR, Retail), would come with a 5 year USA manufacturers warranty.

Q: 3. Is it compatible with QNAP 473A?

A: This drive SEST16000NE0 is compatible with with a Qnap TS-473A.

Q: 4. re: B&H #SEST18000NE0. Is "17200 rpm" a typo?

A: The Seagate 18TB IronWolf Pro 7200 rpm SATAIII Internal NAS HDD (CMR) BH #SEST18000NE0 is a 7200rpm drive. The error has been reported and should be updated as soon as possible.

Q: 5. Is this a 512e drive or 4Kn?

A: The Seagate 12TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD is a 512e drive.

Q: 6. How many hours are on these used drives?

A: This listing is for a new Seagate 22TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD. All of the items on our site are new unless marked otherwise.

Q: 7. Is this model SMR or CMR?

A: Seagate only produces NAS drives that are CMR.

Q: 8. It is compatible with Synology DS920+?

A: Yes. The Seagate IronWolf Pro series drives are recommended for use in NAS enclosures such as the Synology DS920+.

Q: 9. I have a 920DS+ and need to purchase larger HDDs. What is the benefit of the Seagate 10TB IronWolf Pro 7200 rpm vs the non pro?

A: The Ironwolf Pro line features several upgrades such as a 2 million hour TBF rating (as opposed to 1 million hours) and a data transfer rate of up to 263 MB/s (as opposed to up to 210 MB/s).

Q: 10. Is the Seagate 20 TB Iron Wolf Pro listed on the Synology DS1522+ approved list?

A: 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.