Seagate IronWolf Pro 20TB Internal HDD

SATA 6Gb/s - 7200 RPM - 256MB Cache - Perfect for 1-16 BAY NAS system - 5 years warranty

PB Tech price

$ 799 .00

+GST

$ 918 .85

inc GST

Seagate IronWolf Pro 20TB Internal HDD

Name: Seagate IronWolf Pro 20TB Internal HDD SATA 6Gb/s - 7200 RPM - 256MB Cache - Perfect for 1-16 BAY NAS system - 5 years warranty
Brand: Seagate
SKU: HDDSE8311
Price: 918.85 NZD
Availability: InStock
Rating: 4.9 (23 reviews)

SATA 6Gb/s - 7200 RPM - 256MB Cache - Perfect for 1-16 BAY NAS system - 5 years warranty

Brand: Seagate
MPN: ST20000NT001
Part #: HDDSE8311
UPC: 763649176252

PB Tech price

$ 918 .85

inc GST

+GST inc GST

Tax free price $846.94*

*Price includes surcharge

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Delivery: Order now and it ships on 28 Oct When will I receive it?

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Brand: Seagate
MPN: ST20000NT001
Part #: HDDSE8311
UPC: 763649176252

23 reviews

HDD Capacity

4TB 8TB 10TB 12TB 16TB 18TB 20TB 22TB 24TB

Form Factor

3.5"

RPM

7200RPM

Cache

256MB

Interface

SATA3

View full specs

Returns & Warranty Bulk Quote Print Page

What PB Tech customers are saying about this product...

See More Reviews

24TB

"Been running an enclosure with Seagate IronWolf Pro's everyday, 15hrs a day, for donkey's years. No brainer when it came time to upgrade to a bigger capacity. Rock solid."

By: PaulL878 20/10/25

8TB

"Installed this in my PC as a main data drive. It backup to an 8TB Expansion drive. Pay once, no monthly fees to a 3rd party, and now future proofed for 3-5years for half a day's e ...view more"

By: Guest 17/09/25

20TB

"Great size Hard drive for great value, works perfectly with all NAS devices awesome."

By: JustinL87 28/08/25

Verified Owner

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Features

Seagate 20TB IronWolf Pro 7200 rpm SATA III

Designed for use in 1-16 bay NAS environments within commercial and enterprise settings, the 22TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD from Seagate is built to withstand 24/7 operation, or 8760 hours per year. This 22TB 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 512MB cache, providing users with ample storage capacity with data transfer speeds of up to 285 MB/s. The IronWolf Pro also has an MTBF rating of 2.5 million hours, a workload rate of up to 550TB per year, and an annualized failure rate (AFR) of 0.35%. Seagate includes 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.

- 22TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
- 7200 rpm
- Up to 285 MB/s Data Transfer Rate
- 2.5 Million Hours MTBF
- Workload Rate: 550TB per Year
- 0.35% Annualized Failure Rate (AFR)
- Seagate Rescue Data Recovery

Optimized for NAS with AgileArray

AgileArray is built for dual-plane balancing and RAID optimization in multi-bay environments with advanced power management

Reduced Lag Times

Improved performance means reduced lag times or downtime for users during high traffic times on the NAS

IronWolf Health Management

IronWolf Health Management focuses on prevention, intervention, and recovery

Seagate Rescue Data Recovery

IronWolf Pro comes with extra peace of mind for most mechanical, accidental, or natural disasters. With a 90% success rate of in-house recovery, Seagate has your back with an included 2-year Rescue Data Recovery plan

Rotational Vibration (RV) Mitigation

IronWolf Pro comes standard with RV sensors to maintain high performance in multi-bay NAS enclosures

Multi-User Environments

IronWolf Pro provides a workload rate of 300TB per year. Multiple users can upload and download data to the NAS server, knowing IronWolf Pro can handle the workload, whether you are a creative professional or a small business

Cache Memory

IronWolf Pro provides 512MB of cache memory, allowing your NAS to serve data faster

1.2 Million Hours MTBF | Limited 5-Year Warranty

This represents an improved total cost of ownership (TCO) over desktop drives with reduced maintenance costs

Designed for 24x7 Performance

Access the data on your NAS at virtually any time, whether remotely or on site

Best-Fit Applications

- 1-16 bay business network attached storage (NAS)
- Backup, archiving, and disaster recovery
- On-premise private cloud
- Virtual storage

Specifications

Read Speed

Maximum: 285 MB/s

Write Speed

Maximum: 285 MB/s

Buffer

256 MB

HDD Specs

Disk Sector Format

512e

Noise Level

26.0 dB (Active)
20.0 dB (Idle)

Reliability / Data Integrity

Endurance (Total Bytes Written)

550 TB

Mean Time Between Failures (MTBF)

2.5 Million Hours

Non-Recoverable Read Errors per Bits Read

1 in 10^15

Electrical

Power Draw

7.7 W (Active)
5.5 W (Idle)
1.0 W (Standby)

Supported Voltage

5 VDC, 12 VDC

Current

2.0 A at 12 VDC

Environmental

Operating Temperature

32 to 97°F / 0 to 65°C

Storage Temperature

-40 to 158°F / -40 to 70°C

Operating Shock

40 G / 2.0 ms

Storage Shock

200 G / 1.0 ms

Operating Vibration

12.5 G / 10 to 1500 Hz

Storage Vibration

2.27 G / 10 to 500 Hz

General

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

1.81 lb

Box Dimensions (LxWxH)

10.6 x 6.1 x 2.9"

Manufacturer Part No:

ST20000NT001

Brand:

Seagate

Product Type:

Internal HDD

UPC

763649176252

Product Family:

IronWolf Pro

Shipping Weight:

0.65 kg

PB Part No:

HDDSE8311

Product Model:

Warranty: 60 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

4.9 out of 5 Stars Based on 23 reviews

5 Stars

4 Stars

3 Stars

2 Stars

1 Stars

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Massive Amounts of Storage!

HDD Capacity: 24TB

Been running an enclosure with Seagate IronWolf Pro's everyday, 15hrs a day, for donkey's years. No brainer when it came time to upgrade to a bigger capacity. Rock solid.

By: PaulL878 20/10/25

0 out of 0 users found this review helpful

Pay Once, Use For Years

HDD Capacity: 8TB

Installed this in my PC as a main data drive. It backup to an 8TB Expansion drive. Pay once, no monthly fees to a 3rd party, and now future proofed for 3-5years for half a day's effort.
Used AI/Chat GPT to help do the installation and setup. No dramas, no double trips across town. Computing in the 21st Century. Love it.

By: Guest 17/09/25

0 out of 0 users found this review helpful

Very easy to use great size

HDD Capacity: 20TB

Great size Hard drive for great value, works perfectly with all NAS devices awesome.

By: JustinL87 28/08/25

Verified Owner

0 out of 0 users found this review helpful

Excellent, fast and quiet

HDD Capacity: 16TB

Installed in my home built NAS server, these are noticably faster and quieter than my older Seagate Ironwolf NAS 10Gb drives.
Been running for several weeks now and no issues.

By: Guest 07/07/25

0 out of 0 users found this review helpful

Easy to install

HDD Capacity: 8TB

I installed it to my new DS224+ Synology NAS and I didn't find any issue. Thanks.

By: JesusL 05/05/25

Verified Owner

0 out of 0 users found this review helpful

Large - but a tad noisy

HDD Capacity: 12TB

Have two of these in a 6-bay NAS. These Pro drives are a tad noisier than the plain 6Tb drives I already have. However, they are faster and work just fine.

By: PaulT775 17/04/25

Verified Owner

0 out of 0 users found this review helpful

Expensive but worth it

HDD Capacity: 10TB

A rock solid disk for your home or small enterprise needs , once configured and tested/in place it has ( I’ve had 4 of these ) and will , run 24x7 with no issues .

By: IlyasB 17/02/25

Verified Owner

0 out of 0 users found this review helpful

Working great with my Synology NAS

HDD Capacity: 4TB

No issues so far. Installed the drives and they work flawlessly. I was concerned about the noise which some others mentioned however I think theres much bigger things to worry about in the world... Noise by my standards is minimal.

By: EvanT69 12/12/24

Verified Owner

0 out of 0 users found this review helpful

Good value for a quality product

HDD Capacity: 10TB

I recommend this product for the performance, five year warranty, and low noise. A con is that it does not come in any box at all, merely an electrostatic resistant bag.

By: DamonL48 22/08/24

Verified Owner

0 out of 0 users found this review helpful

Solid and reliable

HDD Capacity: 16TB

Have used these for a while and never had any issues. Reliable, fast and consistent.

By: Guest 04/04/24

0 out of 0 users found this review helpful

It's an HDD

HDD Capacity: 16TB

It stores stuff, can't complain. It stores stuff, can't complain.

By: Guest 15/01/24

0 out of 1 user found this review helpful

Just the ticket

HDD Capacity: 12TB

Well worth buying
Have many of these drives in my Synology disk station without any issues
Fairly quiet and very reliable

By: PaulL626 10/01/24

Verified Owner

0 out of 0 users found this review helpful

Delivery & Pick-up

Delivery Estimates

The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1-2 working days for North Island deliveries and 2-3 working days for South Island deliveries. Rural deliveries may take an extra working day. Bulk & hazard deliveries may take an extra 2-4 working days.

Same Day Delivery

Need your order in a hurry? PB Tech offers same day delivery for Auckland, Hamilton, Wellington and Christchurch. Simple place your order before 1pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

1 Hour Store Pick-up / Click & Collect

You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.

Overseas Shipments

PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site www.pbtech.com/au. If you are from another country you can order from www.pbtech.com

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed and unopened, with packaging in original condition, accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange. A 20% restocking fee may be applied where goods are not returned in sealed, original packaging condition.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase. Items purchased on finance cannot be exchanged for a gift card.

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

Returning a product / making a warranty claim

To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).

To return a product to PB Tech directly, please complete our request a return form.

Or view our returns policy for more information.

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Seagate IronWolf Pro 20TB Internal HDD SATA 6Gb/s - 7200 RPM - 256MB Cache - Perfect for 1-16 BAY NAS system - 5 years warranty

$799.00 $918.85

$ 1,062 .75

+GST

$ 1,222 .16

Buy together and save $11.42 $13.13

Your combo items

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