We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 3.5 inch SAS hard drive with Synology label

Synology Inc.

Synology Inc. HAS5320-24T 24TB 7200 RPM SAS 12Gb/s 3.5" internal hard drive

SKU CH-1591-6TKMG MPN HAS5320-24T

24TB 7200 RPM SAS 12Gb/s enterprise drive rated for 2.5M hours MTBF and 550TB yearly workload

  • Total capacity24 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Max height5.8
  • Maximum width1

Capacity 24TB

  • 24 TB capacity stores massive datasets
  • SAS 12Gb/s interface delivers high-throughput connectivity
  • 7200 RPM spindle speed supports rapid data access
  • 5 million hour MTBF rating ensures enterprise-grade durability
  • 19 percent faster RAID rebuild cuts recovery time

Enterprise storage for 24/7 workloads

The Synology HAS5320-24T is a 24TB 3.5-inch internal hard drive with a SAS 12Gb/s interface spinning at 7200 RPM. It is built for demanding 24/7 environments and rated for 2.5 million hours MTBF with up to 550 TB per year workloads. Over 200000 hours of stringent validation tests ensure maximum reliability on compatible Synology solutions.

Suited for high-capacity arrays needing fast

This drive suits administrators expanding or repairing RAID arrays on supported Synology SA, HD, and UC Series systems where firmware optimisation cuts rebuild time by up to 19 percent. Buyers using non-Synology controllers or consumer NAS units will not gain the validated firmware benefits or persistent write cache protection. It is not for laptops, external enclosures, or systems lacking a SAS 12Gb/s backplane.

Firmware and cache features reduce maintenance risk

Persistent write cache minimises the chance of data corruption during sudden power loss. One-stop firmware updates through DSM simplify maintenance across the array. Retail or OEM packing may vary, but the drive ships as a bare enterprise unit without cables, brackets, or additional software licences.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $768.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 24 TB
Higher than about 96% of the 2,372 comparable items (median 2 TB).
Price per TB $32.04 per TB
Cheaper than about 80% of the 2,365 comparable items (median $62.21 per TB).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSynology
Part numberHAS5320-24T
Total capacity24 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.68 kg
Package size146 × 102 × 25 mm

Other versions of this model

3 more in the same range

Questions about this item

Does this drive require a SAS 12Gb/s controller or backplane to operate?

Yes, the HAS5320-24T uses a SAS 12Gb/s interface and needs a compatible controller or backplane that supports that link speed.

Can I mix this 24TB SAS drive with older SAS drives in the same array?

It can share a SAS domain with older drives, but the array will run at the lowest common link speed and rebuild times may differ.

How do I confirm the persistent write cache is active after installation?

Check the DSM storage manager; it reports the cache status and will show the drive firmware optimised for Synology SA, HD and UC series.

More in 3.5-Inch Internal Desktop HDDs

Similar items