18TB enterprise 3.5-inch SATA hard drive
Synology HAT5310-18T 18TB Enterprise SATA HDD
The Synology HAT5310-18T is an 18TB, 7,200 rpm enterprise SATA hard drive for supported Synology systems, with a 512e sector format, 512 MiB buffer, 2.5-million-hour MTTF rating and five-year warranty.
- Capacity
- 18 TB
- Interface
- SATA 6 Gb/s
- Rotational speed
- 7,200 rpm
- Transfer speed
- 281 MB/s typical
High-capacity enterprise SATA storage for Synology systems
The HAT5310-18T provides 18TB per drive for supported Synology platforms that require enterprise SATA storage. Its published performance, reliability, power and temperature data support informed capacity planning, while DSM firmware integration can simplify ongoing drive maintenance.
18TB enterprise capacity
The drive provides 18TB in a standard 3.5-inch SATA form factor.
7,200 rpm performance
The official document lists a typical maximum sustained transfer speed of 281 MB/s.
Enterprise reliability profile
The supplied specification states a 2.5-million-hour MTTF rating for the HAT5310-18T.
Persistent write cache
The Enterprise SATA series uses persistent write-cache technology to help protect data during sudden power loss.
DSM firmware maintenance
Supported drive firmware updates can be managed through DSM as part of the system workflow.
Five-year warranty
The drive carries five-year limited coverage beginning from the purchase date on the receipt.
Who is the Synology HAT5310-18T best for?
A strong choice for
- Supported Synology NAS systems needing 18TB per drive
- Enterprise backup and storage-capacity expansion
- 24/7 business storage environments
- Administrators seeking DSM-integrated firmware updates
- Deployments requiring a five-year drive warranty
Consider another model if you need
- Your exact Synology model does not list HAT5310-18T as compatible
- You need a SAS rather than SATA drive
- You require a different capacity or currently listed replacement model
Key specifications
- Model
- HAT5310-18T
- Capacity
- 18 TB
- Form factor
- 3.5-inch
- Interface
- SATA 6 Gb/s
- Sector size
- 512e
- Rotational speed
- 7,200 rpm
- Buffer
- 512 MiB
- Maximum sustained transfer
- 281 MB/s typical
- MTTF
- 2.5 million hours
- Warranty
- 5 years
Full technical specifications
Hardware, performance and reliability
| Model | HAT5310-18T |
|---|---|
| Capacity | 18 TB |
| Form factor | 3.5-inch |
| Interface | SATA 6 Gb/s |
| Sector size | 512e |
| Rotational speed | 7,200 rpm |
| Buffer size | 512 MiB |
| Maximum sustained data transfer speed | 281 MB/s typical (268 MiB/s) |
| Mean time to failure (MTTF) | 2.5 million hours |
| Warranty | 5 years |
Power and temperature
| Active idle power | 4.16 W typical |
|---|---|
| Random read/write power (4KB Q1) | 8.35 W typical |
| Power note | Power consumption may differ according to configurations and platforms. |
| Operating temperature | 5°C to 60°C (41°F to 140°F) |
| Non-operating temperature | -40°C to 70°C (-40°F to 158°F) |
Frequently asked questions about the Synology HAT5310-18T
What is the Synology HAT5310-18T?
It is an 18TB enterprise 3.5-inch SATA hard drive designed for supported Synology systems.
What interface does the HAT5310-18T use?
It uses SATA 6 Gb/s.
What sector format does the HAT5310-18T use?
The supplied specification identifies a 512e sector format.
What rotational speed does the HAT5310-18T use?
It operates at 7,200 rpm.
What transfer speed is listed for the HAT5310-18T?
The official product document lists 281 MB/s typical, equivalent to the supplied 268 MiB/s figure.
How much buffer does the HAT5310-18T have?
The supplied product specification states 512 MiB.
What is the HAT5310-18T MTTF rating?
The supplied specification states 2.5 million hours; MTTF is a statistical value, not a guarantee of drive life.
Can HAT5310-18T firmware be updated through DSM?
The Synology Enterprise SATA series supports firmware maintenance through DSM on compatible systems.
Which systems support the HAT5310-18T?
Compatibility is model-specific. Verify your exact NAS on Synology's current compatibility list.
What warranty applies to the HAT5310-18T?
It has a five-year limited warranty beginning from the purchase date shown on the receipt.
- Use manufacturer model HAT5310-18T when checking compatibility.
- Verify availability and compatibility for the exact Synology NAS before purchase.
- MTTF is a statistical reliability measure, and performance and power may vary with configuration.
