Synology HAT3320-20T NAS Hard Drive, 20 TB SATA III, 3.5″, 7200 RPM
£858.59
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About this item
- 20 TB capacity for NAS storage
- 7200 RPM spindle speed
- 295 MiB/s sustained transfer rate
- 6 Gbit/s SATA III interface
- 3.5-inch HDD form factor
- Designed for continuous 24/7 operation
- 180 TB/year workload rate limit
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Synology HAT3320-20T – high-capacity storage for NAS systems
The Synology HAT3320-20T suits home and business NAS users who need substantial storage for shared files and backups. Its 20 TB capacity and CMR recording support consistent write performance over the drive’s lifespan.
Key specifications at a glance
| Metric | Specification |
|---|---|
| Capacity | 20 TB |
| Form factor | 3.5-inch HDD |
| Interface | SATA III, 6 Gbit/s |
| Rotational speed | 7,200 RPM |
| Sustained transfer rate | 295 MiB/s |
| Workload rate limit | 180 TB per year |
Consistent writes for shared storage
This drive uses conventional magnetic recording (CMR). CMR helps maintain consistent write performance, which is useful when your NAS handles ongoing file transfers and multi-user workloads.
The drive is designed for NAS use and supports 24/7 operation. Its workload rate limit is 180 TB per year, so consider your expected annual read and write activity when choosing a drive.
Firmware support through DSM
Synology firmware updates can be performed through DiskStation Manager (DSM). This lets you update the drive without removing it from the NAS.
Synology also subjects Plus Series drives to compatibility and stress testing for continuous operation under multi-user workloads. This integration can make drive management more straightforward in a Synology system.
Check fit before ordering
- Confirm your NAS supports 3.5-inch SATA drives.
- Check that your NAS supports a 20 TB drive in the intended bay.
- Confirm the system uses a SATA III interface.
- Check that your expected workload fits within the 180 TB annual limit.
Frequently Asked Questions
Q: Is this drive suitable for 24/7 NAS use?
A: Yes. It is designed for NAS use and supports continuous 24/7 operation.
Q: What is the drive’s sustained transfer rate?
A: Its sustained transfer rate is 295 MiB/s.
Q: Does the HAT3320-20T use CMR recording?
A: Yes. It uses conventional magnetic recording (CMR) for consistent write performance.
Q: Can firmware updates be installed through DSM?
A: Yes. Firmware updates can be performed through DiskStation Manager without removing the drive.
A practical choice for large NAS volumes
Choose the Synology HAT3320-20T if you need 20 TB of NAS storage, consistent CMR writes and support for continuous operation. Check your NAS capacity and drive-bay requirements before ordering.
| Hard drive | |
|---|---|
| Component for | NAS |
| HDD sustained transfer rate | 295 MiB/s |
| HDD interface transfer rate | 6 Gbit/s |
| Workload rate limit | 180 TB/year |
| Mean time between failures (MTBF) | 1200000 h |
| HDD speed | 7200 RPM |
| HDD size | 3.5" |
| HDD capacity | 20 TB |
| Features | |
| Type | HDD |
| Component for | NAS |
| HDD sustained transfer rate | 295 MiB/s |
| HDD interface transfer rate | 6 Gbit/s |
| Workload rate limit | 180 TB/year |
| Interface | Serial ATA III |
| Mean time between failures (MTBF) | 1200000 h |
| HDD speed | 7200 RPM |
| HDD size | 3.5" |
| HDD capacity | 20 TB |
| 24/7 operation | Yes |
| Power | |
| Power consumption (write) | 7.62 W |
| Power consumption (read) | 7.62 W |
| Power consumption (idle) | 4.35 W |
| Operating voltage | 5 / 12 V |
| Operational conditions | |
| Operating temperature | 5 - 60 °C |
| Storage temperature | -40 - 70 °C |
| Operating altitude | -304.8 - 3.048 m |
| Non-operating altitude | -304.8 - 12.192 m |
| Packaging content | |
| Manual | Yes |
| Technical details | |
| Manual | Yes |
| Interface | Serial ATA III |
| Mean time between failures (MTBF) | 1200000 h |
| Weight & dimensions | |
| Weight | 730 g |
| Packaging data | |
| Manual | Yes |
| Other features | |
| Interface | Serial ATA III |
| Identifiers | |
| Additional EANs | 0846504006564 |
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