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Synology HAS5320-24T 24TB Enterprise Series 3.5in SAS HDD 12Gb/s 7200rpm 1GB Cache for Synology Systems

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$ 2,172.19


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Synology HAS5320-24T 24TB Enterprise Series 3.5in SAS HDD 12Gb/s 7200rpm 1GB Cache for Synology Systems

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Synology HAS5320-24T HAS5300 Enterprise Series 24 TB 3.5in SAS hard drive for Synology SA, HD and UC Series storage systems. SAS 12 Gb/s interface, 512e sectors, 7,200 rpm helium-sealed design with 1 GB cache. Maximum sustained transfer speed 309 MB/s (typical). Rated for 2.5 million hours MTBF and 550 TB/year workload, with persistent write cache for data integrity on power loss. Over 200,000 hours of validation on Synology systems; firmware updates delivered through DSM. 4.83 W active idle, 8.57 W average operating power. Weight 730 g. 5-year limited warranty. Genuine Synology from ARC IP Networks, authorised Synology reseller with Australian stock.

$ 2,172.19 2172.19 AUD $ 2,172.19 incl. GST

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HAS5320-24T

Synology HAS5320-24T at a glance

The Synology HAS5320-24T is a 24 TB HAS5300 Enterprise Series 3.5" SAS 12 Gb/s hard drive for Synology SA, HD and UC Series storage systems. It runs at 7,200 rpm with a 1 GB cache and up to 309 MB/s sustained transfer, and is rated for a 2.5 million-hour MTBF and 550 TB/year workload with a 5-year warranty.

ARC IP Networks is an authorised Synology reseller in Australia. We supply the genuine Synology HAS5320-24T from Australian stock.

Capacity24 TB, 3.5" SAS
InterfaceSAS 12 Gb/s
Speed7,200 rpm, 309 MB/s
Reliability2.5M hours MTBF

Best for

  • Synology SA, HD and UC Series storage running mission-critical workloads 24/7
  • High-capacity, high-availability storage serving large pools of concurrent clients
  • Enterprise deployments that want drives and storage system supported by one vendor

Key features

24 TB capacity in a 3.5" form factor with a SAS 12 Gb/s interface (12.0/6.0/3.0/1.5 Gb/s) and 512e sector size.

7,200 rpm helium-sealed design with a 1 GB cache and up to 309 MB/s maximum sustained transfer speed.

Rated for a 2,500,000-hour MTBF and 550 TB/year workload for 24/7 enterprise operation.

Persistent write cache minimises the chance of data corruption after sudden power loss and improves write performance.

Up to 19% faster RAID array repair in Synology's testing (12 x HAS5310-12T on an SA3610, RAID 5), reducing time in a degraded state.

Over 200,000 hours of validation and more than 1,000 stress test cycles on SAS-compatible Synology systems.

Drive firmware updates are delivered with DSM updates, easing maintenance for IT teams.

Power draw of 4.83 W active idle and 8.57 W average operating power.

Covered by Synology's 5-year limited warranty.

Synology HAS5320-24T specifications

Synology HAS5320-24T technical specifications
SpecificationValue
General
Capacity24 TB
Form factor3.5"
InterfaceSAS 12 Gb/s
Interface speed12.0 Gb/s, 6.0 Gb/s, 3.0 Gb/s, 1.5 Gb/s
Sector size512e
Drive designHelium-sealed
Performance & Reliability
Rotational speed7,200 rpm
Cache1 GB
Max sustained transfer (typical)309 MB/s
MTBF2,500,000 hours
Workload rating550 TB/year
Warranty5 years
Power
Supply voltage12 V (±10%) / 5 V (+10/-7%)
Active idle (typical)4.83 W
Average operating power (random read/write 4KB Q1)8.57 W
Environment
Operating temperature5°C to 60°C
Non-operating temperature-40°C to 70°C
Operating shock490 m/s² (2 ms)
Non-operating shock1,960 m/s² (2 ms)
Operating vibration5 Hz to 300 Hz: 7.35 m/s², 300 Hz to 500 Hz: 2.45 m/s²
Operating altitude-304.8 m to 3,048 m
Operating humidity5% to 90% RH, non-condensing
Physical & Certification
Size (H x W x D)26.1 mm x 101.85 mm x 147 mm
Weight730 g
CertificationsCE, RCM, BSMI, KC, EAC, UKCA, UL, TUV, ICES, RoHS, Morocco Mark

Figures from Synology's official product specifications.

The Synology HAS5320-24T in depth

Built for Synology enterprise storage

HAS5300 SAS drives are developed and tested for tight integration with Synology SA, HD and UC Series storage systems, using the low-latency SAS protocol for high-capacity, mission-critical workloads. The 24 TB HAS5320-24T delivers up to 309 MB/s sustained transfer from a 7,200 rpm helium-sealed design.

Durability and data protection

With a 2.5 million-hour MTBF and a 550 TB/year workload rating, the drive suits demanding 24/7 environments. Persistent write cache helps protect data integrity on power loss, and over 200,000 hours of validation on Synology systems confirm interoperability.

Simplified maintenance

Firmware tuned with DSM speeds up RAID repair, and drive firmware updates ship together with DSM updates. Synology backs HAS5300 drives with a 5-year limited warranty, giving single-vendor support for drives and host system.

Frequently asked questions

Straight answers about the Synology HAS5320-24T from the ARC IP Networks team. Last reviewed October 2026.

HAS5300 SAS drives are designed and tested for Synology SA, HD and UC Series storage systems; Synology notes some exceptions may apply, so check the compatibility list for your exact model.

It spins at 7,200 rpm with a 1 GB cache and a SAS 12 Gb/s interface, with a maximum sustained transfer speed of 309 MB/s (typical).

HAS5300 drives are rated for a 2,500,000-hour MTBF and a 550 TB/year workload.

Yes. It uses persistent write cache technology, which minimises the chance of data corruption in the event of sudden power loss.

Synology provides a 5-year limited warranty from the purchase date.

ARC IP Networks is an authorised Synology reseller and supplies the HAS5320-24T from Australian stock.

Related Synology products

Explore the full Synology range: Shop all Synology · NAS and storage guides

Buy the Synology HAS5320-24T in Australia

ARC IP Networks is an authorised Synology reseller, supplying Synology NAS, rackmount storage, drives, surveillance and backup appliances to homes, businesses and integrators across Australia.

  • Genuine Synology with the full manufacturer's warranty, supplied from Australian stock.
  • Australian stock, shipped Australia-wide.
  • Local pre-sales help sizing drives, RAID and backup for your NAS.
  • Trade and project pricing available.

Planning a Synology storage project?

Ask ARC IP Networks for project pricing or a NAS and drive bundle quote, or call us to check the right Synology model for your data.

Brand Synology
Synology HAS5320-24T Datasheet.pdf
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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

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3-5 business days

New Zealand

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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.

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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


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ARC IP Networks ships to New Zealand. Please note:


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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.


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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.


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


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  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:

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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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