Enterprise Series 3.5" SAS HDD
Enterprise-grade SAS HDDs for Synology systems
Enterprise-ready
The HAS5300 series drives leverage the low-latency SAS protocol. When paired with high-performance and highly scalable Synology HD, SA, or UC series solutions, they ensure that mission-critical workloads always have access to dependable and fast storage.
Back to peak performance faster
Building on two decades of storage expertise, Synology HAS5300 drives run on firmware optimized for critical workloads that matter. They allow Synology systems to repair degraded RAID arrays up to 27% faster than similar-class and capacity drives.
Validation
Rigorous tests and compatibility verification
Dependable
A 2.5 million-hour MTBF
One-click firmware upgrades
Automatic firmware update notifications and one-click installation through DSM minimize maintenance workload and reduce the chance of oversights.

Faster issue diagnostics and resolution
Deploying Synology hard drives has led to nearly 40% fewer storage-related incidents and more efficient issue resolution for our users.

5-year warranty
At Synology, we are committed to product innovation and quality. HAS5300 drives are backed by a 5-year limited warranty that includes technical support and hardware replacement services to maximize your return on investment. Learn more
HD6500

- 10-core CPU Turbo Boost up to 3.2 GHz
- Over 6,688/6,662 MB/s sequential read/write
- Up to 300 drive bays
SA3400D

- Dual controller architecture
- 8-core CPU Turbo Boost up to 2.7 GHz
- Over 130,000 4K random write IOPS
UC3400

- Dual active controllers
- High availability iSCSI service
- Over 180,000 4K random write IOPS
Hardware Specifications |
HAS5300-8T
|
HAS5300-12T
|
HAS5300-16T
|
HAS5310-20T
|
---|---|---|---|---|
General |
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Capacity | 8 TB | 12 TB | 16 TB | 20 TB |
Form Factor | 3.5" | 3.5" | 3.5" | 3.5" |
Interface | SAS 12 Gb/s | SAS 12 Gb/s | SAS 12 Gb/s | SAS 12 Gb/s |
Performance |
||||
Rotational Speed | 7,200 rpm | 7,200 rpm | 7,200 rpm | 7,200 rpm |
Maximum Sustained Data Transfer Speed (Typ.) | 241 MB/s | 254 MB/s | 275 MB/s | 281 MB/s |
Reliability |
||||
Warranty | 5 Years | 5 Years | 5 Years | 5 Years |
Notes |
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) |
Power Consumption |
||||
Active Idle (Typ.) | 6.62 W | 4.36 W | 4.46 W | 4.74 W |
Random Read / Write (4KB Q1) (Typ.) | 9.87 W | 7.80 W | 8.12 W | 8.46 W |
Notes |
Power consumption may differ according to configurations and platforms. | Power consumption may differ according to configurations and platforms. | Power consumption may differ according to configurations and platforms. | Power consumption may differ according to configurations and platforms. |
Temperature |
||||
Operating | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) |
Non-operating | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) |
Compatibility |
||||
Applied Models |
Hardware Specifications |
HAS5300-8T
|
HAS5300-12T
|
HAS5300-16T
|
HAS5310-20T
|
|
---|---|---|---|---|---|
General | Capacity | 8 TB | 12 TB | 16 TB | 20 TB |
Form Factor | 3.5" | 3.5" | 3.5" | 3.5" | |
Interface | SAS 12 Gb/s | SAS 12 Gb/s | SAS 12 Gb/s | SAS 12 Gb/s | |
Performance | Rotational Speed | 7,200 rpm | 7,200 rpm | 7,200 rpm | 7,200 rpm |
Maximum Sustained Data Transfer Speed (Typ.) | 241 MB/s | 254 MB/s | 275 MB/s | 281 MB/s | |
Reliability | Warranty | 5 Years | 5 Years | 5 Years | 5 Years |
Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | ||||
Power Consumption | Active Idle (Typ.) | 6.62 W | 4.36 W | 4.46 W | 4.74 W |
Random Read / Write (4KB Q1) (Typ.) | 9.87 W | 7.80 W | 8.12 W | 8.46 W | |
Notes | Power consumption may differ according to configurations and platforms. | ||||
Temperature | Operating | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) | 5°C to 60°C (41°F to 140°F) |
Non-operating | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) | -40°C to 70°C (-40°F to 158°F) | |
Compatibility |
|||||
Applied Models |