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Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (4-Pack)

BH #SYHAT3310124
30 reviews
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Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (4-Pack)
Key Features
  • 12TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 512MB Cache
Expand your storage capacity with this Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD 4-pack bundle from B&H. Together, these drives provide 48TB.
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Synology HAT3310 Plus Internal HDD Overview

Expand your storage capacity with this Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD 4-pack bundle from B&H. Together, these drives provide 48TB.

Reliable Always-On Operation
Backed by a 1.2 million hours MTBF and 180TB per year workload rating.
Tested for Maximum Reliability
Stringent validation and up to 500,000 hours of testing ensure reliability in Synology systems.
Seamless Firmware Updates
Firmware updates can be performed directly in Synology DSM.
Reliable Recording Technology
Conventional magnetic recording (CMR) technology offers consistent performance.
Engineered for Endurance
Synology Plus Series HDDs are backed by a 1.2 million hour Mean Time Between Failures (MTBF) rating and 180TB per year workload rating, which is up to three times the limit of conventional desktop hard drives. Over 500,000 hours of compatibility and stress testing ensure smooth operation even under multi-user workloads.
Convenient Firmware Updates
Users are automatically notified when firmware updates become available for Synology Plus Series HDDs and can update drives seamlessly from DiskStation Manager (DSM) on their Synology storage system, eliminating the need for third-party tools and disk removal for firmware updates.
UPC: 846504005581

Synology HAT3310 Plus Internal HDD Specs

Key Specs
Total Installed Storage
12 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Read Speed
Maximum: 281 MB/s
Write Speed
Maximum: 281 MB/s
Total Installed Storage
12 TB
Drive Type
SATA III / 3.5" HDD (7200 rpm)
Performance
Read Speed
Maximum: 281 MB/s
Write Speed
Maximum: 281 MB/s
Mean Time Between Failures (MTBF)
1.2 Million Hours
Endurance (Total Bytes Written)
180 TB
Electrical
Power Draw
6.85 W (Active)
3.3 W (Idle)
General
Operating Conditions
41 to 140°F / 5 to 60°C
Storage Conditions
-40 to 158°F / -40 to 70°C
Dimensions
5.8 x 4.01 x 1.03" / 147 x 101.85 x 26.11 mm
Weight
1.6 lb / 720 g
Packaging Info
Package Weight
1.725 lb
Box Dimensions (LxWxH)
8.9 x 6.2 x 2.9"

Synology HAT3310 Plus Internal HDD Reviews

Forced to buy these.

By Marc
Rated 3 out of 5
Date: 2026-04-13

I bought these synology (Hitachi) drives because Synolgy won't support other drives, inlcuding my Seagate Exos which are much better than these. Oh, well.

A great option for your Synology NAS

By Chris
Rated 5 out of 5
Date: 2026-01-28

We recently bought a Synology RS2423+ NAS for our small business content team and these drives were the top choice. Very reliable, reasonably priced, and you can't beat B and H fast shipping!

See any errors on this page?

Is this compatible with my Synology DS223 2 bay sy

Is this compatible with my Synology DS223 2 bay system that I bought from you?
Asked by: Kevin
The Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (B&H # SYHAT3310122) is compatible with the Synology NAS DS223.
Answered by: Luis F
Date published: 2026-05-17

Are these compatible with UGREEN NAS systems?

Are these compatible with UGREEN NAS systems?
Asked by: Jesse
Yes, the Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD will be supported by UGREEN NAS enclosures.
Answered by: Elliot A
Date published: 2026-04-15

can I use 4 of these with my sinology ds418 4 bay ...

can I use 4 of these with my sinology ds418 4 bay ?
Asked by: Laura
The Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (2-Pack) is compatible with the Synology DS418 NAS enclosure.
Answered by: Alex D
Date published: 2025-05-20

Are these CMR drives?

Are these CMR drives?
Asked by: Keith
Yes, this Synology 16TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD is CMR.
Answered by: Sagi C
Date published: 2024-05-31

Is this drive compatible with the DS218+?

Is this drive compatible with the DS218+?
Asked by: REbecca
Yes, this Synology 16TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD will be compatible with the DS218+ NAS enclosure. HAT3310-16T is listed as a compatible drive in Synology's list here: https://bit.ly/4os70on.
Answered by: Jordan K
Date published: 2025-10-31

Can I do 2 of these with 2 4 TB Synology Drives ...

Can I do 2 of these with 2 4 TB Synology Drives at 5400 RPMS?
Asked by: Tim
Yes, the Synology Plus Series Drive can be used alongside two 4TB Synology drives at 5400 RPM.
Answered by: Nick Y
Date published: 2025-11-24
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