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Silver 3.5 inch SAS hard drive in anti-static bag

Synology Inc.

Synology HAS5310 20 TB 3.5" SAS 7200 rpm drive enclosure

SKU CH-XFNT-T0487

Enterprise 20 TB SAS hard drive with 7200 rpm spindle and 281 MB/s sustained transfer for Synology systems

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  • Enterprise storage ready with 20 TB capacity
  • SAS 12 Gb/s interface for low-latency access
  • 7200 rpm spindle delivers 281 MB/s sustained throughput
  • 5 million-hour MTBF backed by 200 000 hours validation
  • RAID rebuild up to 27 % faster on Synology DSM

Enterprise SAS drive for Synology NAS

The Synology HAS5310 is a 20 TB 3.5 inch enterprise hard drive built for Synology systems. It uses a SAS 12Gb/s interface and spins at 7200 rpm to serve multi-user workloads. The drive is validated through over 200000 hours of testing on Synology hardware.

Sustained throughput and RAID rebuild

It delivers up to 281 MB/s sustained data transfer rates rather than burst speeds. Degraded RAID arrays rebuild up to 27 percent faster on Synology NAS compared to similar-class drives. Firmware is tuned for the 550 TB per year workload rating.

Thermals noise and power in normal use

The SAS protocol provides low-latency access for mission-critical tasks. Enterprise helium sealing reduces internal friction and acoustic output during continuous operation. A 2.5 million hour MTBF reflects the thermal and mechanical design target.

Punti di forza

  • Enterprise storage ready with 20 TB capacity
  • SAS 12 Gb/s interface for low-latency access
  • 7200 rpm spindle delivers 281 MB/s sustained throughput
  • 5 million-hour MTBF backed by 200 000 hours validation
  • RAID rebuild up to 27 % faster on Synology DSM

Caratteristiche tecniche

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Domande su questo articolo

How much power and heat does the 20 TB SAS 7200 rpm drive generate during continuous operation?

The drive is engineered for enterprise workloads up to 550 TB per year with a 2.5 million-hour MTBF, indicating sustained operation within typical 3.5-inch SAS power envelopes.

What host interface and controller does the HAS5310 require to function?

It uses a SAS 12 Gb/s interface and is validated for Synology DiskStation Manager systems, so a compatible SAS backplane or HBA is needed.

Will the 12 Gb/s SAS drive work in an older 6 Gb/s SAS enclosure I already own?

Yes, SAS is backward compatible; the drive will negotiate down to 6 Gb/s while retaining its 281 MB/s sustained transfer rate and RAID repair optimisation.

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