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3.5 inch silver hard drive with green circuit board visible on underside

Synology Inc.

Synology HAT5300-12T 12TB 7200 RPM 256MB 3.5" SATA internal hard drive

SKU CH-E910-0AF4A MPN HAT5300-12T

A 12 TB 3.5" SATA enterprise hard drive rated for 24/7 workloads up to 550 TB per year with 2.5 million hours MTTF and 256 MB cache

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Key featuresEnterprise Reliability and Durability For demanding 24/7 env

Capacity 12TB

  • Enterprise reliability for 24/7 workloads rated at 2.5 million hours MTTF and 550TB per year
  • Sustained transfer up to 274 MB/s with 23% faster sequential reads in Synology NAS
  • 300,000 hours validation testing ensures maximum reliability in Synology systems
  • Automatic firmware updates through DSM reduce maintenance sessions
  • 12TB capacity with 7200 RPM and 256MB cache on SATA 6.0Gb/s interface

Enterprise NAS drive for Synology systems

The Synology HAT5300-12T is a 12TB 3.5-inch SATA hard drive built for continuous operation in Synology NAS devices. It spins at 7200 RPM with a 256MB cache and uses Persistent Write Cache Technology to protect data during unexpected power loss. The drive is rated for 2.5 million hours MTTF and 550TB per year workloads.

Suited for Synology NAS owners needing

This drive is intended for users expanding or populating a Synology storage system that appears on the vendor compatibility list. It is not for builders installing drives in non-Synology servers, desktop PCs, or external enclosures where automatic DSM firmware updates and validated firmware tuning are unavailable.

SATA 6.0Gb/s interface

The single specification that decides fit is the SATA 6.0Gb/s interface combined with Synology-exclusive validation. The drive delivers up to 274 MB/s sustained sequential read speed and up to 23 percent faster sequential reads in validated Synology NAS environments compared to non-validated drives.

How it compares

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

Price $317.99
Pricier than about 84% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $26.50 per TB
Cheaper than about 87% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSynology
Model nameHAT5300-12T
Total capacity12 TB
Recommended useFor NAS systems
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.73 kg
Package size178 × 133 × 51 mm

Other versions of this model

3 more in the same range

Questions about this item

Will the 256 MB cache or the Persistent Write Cache Technology need any replacement or servicing later?

The 256 MB cache and Persistent Write Cache Technology are built into the sealed drive and do not require separate replacement or servicing during the product's life.

What is the annual workload limit that will be reached first under sustained 24/7 use?

The drive is rated for up to 550 TB per year workloads, which represents the sustained use limit for this enterprise-class drive.

How much heat and power should I expect once this 7200 RPM drive runs all day in a NAS?

The drive is purpose-built for 24/7 environments with enterprise reliability, and automatic firmware updates through DSM help maintain consistent performance during continuous operation.

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