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Seagate One Touch Desktop 20TB External Hard Drive, USB-C, Bus-Powered (STNB20000400)

Price:

$ 1,397.55


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Seagate One Touch Desktop 20TB External Hard Drive, USB-C, Bus-Powered (STNB20000400)

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The Seagate One Touch Desktop 20TB (STNB20000400) is a bus-powered USB-C external hard drive for Windows and Mac backups. It needs a USB-C port with 15W or more power delivery and comes with a 2-year limited warranty and 2 years of Rescue Data Recovery Services (may vary by region). Delivered Australia-wide by ARC IP Networks, an authorised Seagate reseller, at competitive prices.

$ 1,397.55 1397.55 AUD $ 1,397.55 incl. GST

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Seagate External Hard Drive Seagate One Touch
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The Seagate One Touch Desktop 20TB (STNB20000400) is a bus-powered USB-C external hard drive for Windows and Mac backups. It needs a USB-C port with 15W or more power delivery and comes with a 2-year limited warranty and 2 years of Rescue Data Recovery Services (may vary by region).

Seagate One Touch Desktop 20TB external desktop hard drive (STNB20000400)

Seagate One Touch Desktop 20TB overview

One Touch Desktop is Seagate's high-capacity external hard drive that runs from a single USB-C cable. At 20TB it holds far more than a typical portable drive, so photos, projects and backups can live in one place.

Because it draws power over USB-C, your computer's port must deliver 15W or more and you need a USB-C data cable; Seagate Toolkit checks the setup. It works with Windows and macOS out of the box and needs reformatting for Time Machine.

In the box are the drive, a 0.5 m USB-C cable, Toolkit software and a quick start guide, with a 2-year limited warranty and 2 years of Rescue Data Recovery Services (may vary by region).

Key features

Bus-powered USB-C

Powered over its USB-C cable from a port with 15W or more power delivery: no wall outlet needed.

One cable, quick connect

One port and one cord, with no power brick on the desk.

Drag-and-drop backup

Plug in and back up, copy and store files with simple drag and drop.

Windows and Mac

Works with Windows and macOS; reformat it to use with Time Machine.

Rescue Data Recovery

2 years of Seagate Rescue Data Recovery Services, where available in your region.

Toolkit software

Seagate Toolkit software is included to check your setup.

Seagate One Touch Desktop 20TB videos

Seagate | One Touch desktop: On-the-go connectivity. Off-the-wall innovation. (Video: Seagate)

Understanding the 15W USB-C Power Requirement | Seagate One Touch | FireCuda X Vault | (Video: Seagate)

Seagate One Touch Desktop 20TB specifications

At a glance

20TB capacity
USB-C
Space Gray
2 years Rescue
2-year warranty
Seagate One Touch Desktop 20TB full specifications
General
Model numberSTNB20000400
Drive familySeagate One Touch
Form factorDesktop external
Capacity20TB
InterfaceUSB-C
Reliability
Limited warranty2 years
Rescue Data Recovery Services2 years
Physical
Weight1.132 kg
Dimensions (L x W x D)186.8 x 40.3 x 131.7 mm
ColourSpace Gray
System requirements
RequirementWindows or macOS computer (compatible with most systems)
RequirementUSB-C port with 15W or higher power delivery and a USB-C data cable
RequirementReformatting required for use with Time Machine

Source: Seagate's published specifications (Seagate datasheet and product manual for this model). Seagate may change specifications without notice.

Seagate documents for this drive (Seagate One Touch Desktop Datasheet) are attached under Documents on this page.

What's in the box

  • Seagate One Touch HDD
  • 0.5 m (1.64 ft) USB-C cable
  • Toolkit software
  • Quick start guide

Source: Seagate's datasheet (What's Included).

Seagate One Touch Desktop 20TB compatibility

Computers

  • Windows or macOS computer (compatible with most systems)
  • USB-C port with 15W or higher power delivery and a USB-C data cable
  • Reformatting required for use with Time Machine
  • Seagate Toolkit software is not compatible with ChromeOS.

Power over USB-C

  • Bus-powered: no wall outlet needed.
  • If the port supplies less than 15W the drive may not work properly; Seagate Toolkit verifies the setup.

Related guides

NAS Backup Done Right: The 3-2-1 Rule and RAID 5 vs RAID 6 (Australia)

Back Up Windows, Mac and Linux to an ASUSTOR NAS (with Snapshots)

NAS vs Cloud Storage: What is Right for Australians?

Buy the Seagate One Touch Desktop 20TB from ARC IP Networks

ARC IP Networks is an authorised Seagate reseller in Australia: genuine Seagate drives at competitive prices, with the full Seagate manufacturer warranty, Australia-wide delivery and trade pricing.

  • Authorised Seagate reseller: genuine, new Seagate drives.
  • Manufacturer warranty: Seagate 2-year limited warranty, as published by Seagate for this model.
  • Australia-wide delivery to every state and territory.
  • Trade and project pricing: call 1300 100 440 or email info@arcip.com.au.

Frequently asked questions

Straight answers about the Seagate One Touch Desktop 20TB from the ARC IP Networks team.

Last reviewed October 2026.

Yes. ARC IP Networks is an authorised Seagate reseller in Australia. The STNB20000400 we sell is genuine, new Seagate stock with the full Seagate manufacturer warranty, delivered Australia-wide at competitive prices.

The Seagate One Touch Desktop 20TB (STNB20000400) is a bus-powered USB-C external hard drive for Windows and Mac backups. It needs a USB-C port with 15W or more power delivery and comes with a 2-year limited warranty and 2 years of Rescue Data Recovery Services (may vary by region).

No. It is bus-powered over USB-C. Your computer needs a USB-C port with 15W or higher power delivery and a USB-C data cable.

Yes. It works with most Windows and macOS systems; it needs reformatting before use with Time Machine.

Seagate One Touch HDD, 0.5 m (1.64 ft) USB-C cable, Toolkit software, Quick start guide.

A 2-year limited warranty and 2 years of Rescue Data Recovery Services (may vary by region). ARC IP Networks handles warranty claims for drives bought from us.

Yes. We deliver to every state and territory, and offer trade and project pricing. Call 1300 100 440 or email info@arcip.com.au for a quote.

Need several One Touch Desktop 20TB drives for backups across an office?

Ask ARC IP Networks for volume and project pricing on genuine Seagate drives, or a quote with delivery to one or several sites.

Genuine Seagate in Australia. Browse the full Seagate range at ARC IP Networks: IronWolf and IronWolf Pro NAS drives, SkyHawk and SkyHawk AI surveillance drives, Exos enterprise drives, BarraCuda and external drives.

Shop all Seagate drives

Brand Seagate
Form Factor Desktop External
Warranty 2 Years
Storage Capacity 20TB
Drive Family One Touch
Interface USB-C
Seagate One Touch Desktop Datasheet.pdf
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Accurate Shipping Costs

Our online shipping calculator is designed to provide a final, accurate shipping cost based on the items in your cart and your delivery postcode. Shipping costs are calculated at checkout based on your order and delivery postcode. The final cost is calculated based on several factors which are automatically accounted for by our system, including:

  • The stock location of the item(s) across our warehouses.
  • Orders with multiple items that may require special packaging.
  • The weight and dimensions of the order (including heavy or oversized items).
  • The delivery courier servicing your specific region.

Delivery Times


 

Standard Processing


Most orders placed by 2pm AEDT are dispatched for next working day delivery. Larger orders may require 1-2 additional business days for processing. If timing is critical, please contact us to discuss expedited options (additional charges may apply).


Delivery Timeframes


Region

Processing Time

Express Delivery

Standard Delivery

VIC, NSW, SA, QLD Metro, TAS

1-2 business days

1-2 business days

2-4 business days

NT, WA, QLD Rural

1-2 business days

1-2 business days

3-5 business days

New Zealand

1-2 business days

2-3 business days

4-10 business days

Please note: Processing times may extend during peak periods such as Christmas and end of financial year.

Free Warehouse Pickup



Save on shipping costs with free pickup from our ARC IP Networks Blackburn warehouse. Simply place your order online or by phone, and collect during business hours (Monday to Friday). Please allow time for picking and packing. For urgent orders, call 1300 100 440 to confirm your order is ready.

ARC IP Networks Pickup Address: 6 George Street, Blackburn, VIC 3130


Insurance & Tracking



All ARC IP Networks shipments are fully insured and trackable. Once dispatched, you'll receive an email with your tracking number and courier website details. If your item is confirmed lost or damaged by our courier, we'll arrange a replacement in consultation with you.


International Shipping



ARC IP Networks ships to New Zealand. Please note:


  • Import duties and taxes vary by country
  • Buyers are responsible for all customs charges
  • Contact your local customs authority before ordering
  • We'll provide required documentation for smooth customs clearance
  • Buyers cover all shipping costs for returns due to refused duties/taxes


Delivery Requirements


Signature Required


All deliveries must be signed for. If you won't be home, contact our Sales Support team to arrange Authority to Leave. Important: Authority to Leave voids shipping insurance if parcels are lost or stolen.


Delivery Restrictions


We do not deliver to PO Boxes or Parcel Lockers as our couriers cannot access them. Orders sent to these addresses will be returned, incurring redelivery fees.


Shipping Issue Resolution


ARC IP Networks works closely with our shipping partners to resolve any delivery issues quickly and fairly:


  1. Confirmation: We verify expected delivery dates with our shipping partners
  2. Investigation: Issues outside normal timeframes trigger formal investigations
  3. Communication: We keep you updated throughout the resolution process
  4. Resolution: Confirmed lost items are replaced or refunded after investigation completion


Please note: Refunds for lost, missing, or delayed orders cannot be processed until shipping partner investigations are complete. This does not affect your rights under the Australian Consumer Law, and refunds or replacements will be provided where required once loss or damage is confirmed.

Warranty & Faulty Products

ARC IP Networks complies with the Australian Consumer Law (ACL).

If a product is faulty, damaged, not of acceptable quality, or does not perform as advertised, you are entitled to a repair, replacement, or refund in accordance with ACL.

Manufacturer Warranty Returns

For faults developing after 14 days within the warranty period:

  • Contact ARC IP Networks first at info@arcip.com.au or 1300 100 440
  • We will assess the issue and coordinate with manufacturers, authorised service centres, or distributors on your behalf
  • Where required, a manufacturer RMA may be arranged
  • ARC IP Networks manages the return process and next steps

Dead on Arrival (DOA)

Products that arrive faulty or damaged must be reported within 14 days of delivery.

ARC IP Networks will arrange assessment, replacement, or refund as appropriate.

Change of Mind & Non-Faulty Returns

Change-of-mind returns must be requested within 14 days of delivery. For change-of-mind returns, the product must be unused, unopened, in its original packaging, and returned with all accessories and documentation. These conditions apply only to change-of-mind returns and do not limit or exclude your rights under the Australian Consumer Law. Some products are not eligible for change-of-mind returns, including:

  • Ex-demo products
  • Clearance or markdown items
  • Special-order items
  • Products clearly marked “No Change-of-Mind Returns”

Important

This does not affect your rights under Australian Consumer Law.

If a product is faulty, not of acceptable quality, or does not meet advertised specifications, it remains eligible for return regardless of category.

Refunds & Processing Timeframes

  • Approved refunds are processed within 7 business days of receiving returned goods
  • Refunds are issued to the original payment method, unless otherwise agreed
  • Replacement or repair may be offered where appropriate
  • Store credit may be offered only with customer consent

Handling fees and non-returnable service charges may not be refundable where permitted by law.


Restocking Fees

For approved change-of-mind or non-faulty returns, a 15% restocking fee applies.

  • Any applicable restocking fee will be clearly communicated prior to return approval
  • The fee will be deducted from the refund amount
  • Restocking fees do not apply to returns made under the Australian Consumer Law, including faulty, damaged, or misrepresented goods.

Return Shipping Costs

  • Change-of-mind returns: The customer is responsible for return shipping costs.
  • Faulty or defective products: ARC IP Networks covers return shipping under Australian Consumer Law.

Non-Warranty Repairs

For issues not covered by warranty:

  • ARC IP Networks will provide a quote before proceeding
  • Customers are responsible for all shipping and service costs
  • No repairs are undertaken without customer approval

Return Methods

Returns may be made:

  • In-store at ARC IP Networks – 6 George Street, Blackburn VIC 3130
  • Or by shipment as instructed by our support team

Proof of purchase is required for all returns.

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