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Synology HAT5310-20T 20TB

3.5" 20TB 7200 RPM 512MB Serial ATA 6Gb/s 512e Hard Disk Drive for Synology NAS (bulk)

1 229€95
Recycling charge of 0€13
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Capacity:
  • 12000 GB

    729€95
    In stock
  • 16000 GB

    899€95
    In stock
  • 20000 GB

    1 029€95
    In stock
Overview

Synology HAT5310: Data Center Storage

Synology's HAT5310 hard drive delivers industry-leading performance throughtight integration with DSM and Synology hardware. With over 300,000 hours of internal validation testing and a 5-year limited warranty from Synology, the HAT5310 series brings unmatched reliability to Synology deployments.

Consistent Performance Scalability

Through testing and optimization, the HAT5310 series hard drives have been optimized to deliver up to 23% higher sequential read performance in demanding multi-user environments.

The HAT5310 series hard disk drives benefit from a Mean Time To Failure (MTTF) rating of 2 million hours, workload support of 550TB per year and persistent write cache technology to reduce the risk of data corruption in the event of sudden power loss.

Designed for optimum performance

Over 300,000 hours of endurance testing with Synology devices ensures that the HAT5310 drives can withstand the most demanding enterprise environments and deliver extremely reliable performance.

With automatic firmware updates via DSM, HAT5310 drives always benefit from the latest enhancements.

Key features :

  • 3.5" 20Tb 512e hard disk for Synology NAS
  • Cache memory: 512 MB
  • Rotation speed: 7200 RPM
  • MTTF: 2 million hours
  • Annual load: 550 TB
  • Transfer rate: 281 MB/s max.
  • Typical power consumption: 8.11 W (Random Read/Write T1 4KB), 4.38 W (Idle)
  • Compatibility list
Specifications
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General information

Product name

Synology HAT5310-20T 20TB

Brand

Synology

Model

HAT5310-20T

Main characteristics

Interface with the computer

Serial ATA 6Gb/s (SATA Revision 3)

Hard drive format

3" 1/2

Capacity

20 TB

Performance

Rotation speed

7200 RPM

Cache size

512 MB

Design

Hard drive type

HDD (Hard Disk Drive)

Use

for NAS

Physical characteristics

Width

101.85 mm

Height

26.1 mm

Depth

147 mm

Weight

720 g

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

Synology GmbH

Postal address

Grafenberger Allee 295, 40237 Düsseldorf, Deutschland

Electronic Address

de_sales@synology.com

Product referenced on 30 May 2024

Customer reviews
  • 88%
    7 reviews
  • 13%
    1 review
  • 0%
  • 0%
  • 0%
  • by TimotheeL
    Posted on 18 Feb 2026
    Bought on 20 Jan 2026 from LDLC
    Number of reviews: 1 Average rating: 10

    LDLC still at the top!

    LDLC is one of the few websites where I was able to find the product I needed at a competitive price and with service that met my expectations!
    Purchasing process and delivery speed ++++

    Thank you!
    And have a great day, everyone!

    Model: Synology HAT5310-8T 8 TB
    Review automatically translated
  • by JeanFrancoisF
    Posted on 9 Jul 2025
    Bought on 8 Jun 2025 from LDLC
    Number of reviews: 6 Average rating: 10

    Reliable, robust

    The first time I saw the hard drives I was impressed by the physical volume. It's quite imposing. After all, they're 8TB and I think that justifies the price of the enterprise series. I already had an initial set of 6 hard drives on my Synology DS1621+ NAS and I've never had any problems. Thanks Synology. And thank you LDLC for the speed of shipping to Polynesia.

    Model: Synology HAT5310-8T 8 TB
    Review automatically translated
  • by MarcR
    Posted on 8 Apr 2025
    Bought on 7 Mar 2025 from LDLC
    Number of reviews: 7 Average rating: 10

    Impeccable equipment expected

    The delivery went well because the SYNOLOGY disks were well packaged. Once installed, they worked without a hitch. They are of very good quality and hardly heat up at all. The TOP!

    Model: Synology HAT5300-4T 4 TB
    Review automatically translated
  • by Dadou
    Posted on 25 May 2024
    Bought on 11 Aug 2023 from LDLC
    Number of reviews: 17 Average rating: 9

    A little expensive but good

    These Synology disks are manufactured by Toshiba and are in fact N300s, which are cheaper to buy.
    The advantage is that any drive updates are built into the DSM, so they're easy to do, which is not the case with the Toshiba drives.
    On the other hand, these disks are fast and come with a 5-year guarantee, compared with 3 for the N300.
    The same applies to SAS interface drives.

    Model: Synology HAT5310-8T 8 TB
    Review automatically translated
  • by DimitriB
    Posted on 2 Oct 2023
    Bought on 3 Sep 2023 from LDLC
    Number of reviews: 1 Average rating: 10

    Up to the challenge!

    Super HDD. I ordered 2 for the installation of my Synology NAS and everything worked perfectly from the start. I'd like to take this opportunity to thank LDLC for the quality of their returns service and the tracking in general. It's reassuring to have a French service worthy of the name ????

    Model: Synology HAT5310-8T 8 TB
    Review automatically translated