Synology 3.5” SATA Enterprise Series Hard Drive 20TB
Synology 3.5” SATA Enterprise Series Hard Drive 20TB (HAT5310-20T)
- Enterprise Reliability and Durability – For demanding 24/7 environments, rated for up to 2.5 million hours MTBF3 and up to 550 TB per year workloads
- Persistent Write Cache Technology – Minimizes the chance of data corruption in the event of sudden power loss
- Better Performance – Firmware and DiskStation Manager (DSM) optimizations improve multi-client seq. read performance by up to 23%
- One-Stop Update – Get one-click firmware updates through DSM, reducing the need for additional maintenance sessions
- For Synology, by Synology – Stringent validation and up to 500,000 hours of tests ensures maximum reliability in Synology systems
Synology HAT5300 series HDDs are engineered for demanding, high-volume workloads, delivering up to 23% greater multi-client sequential read performance compared to third-party drives. Built for unwavering reliability, these CMR-based drives have undergone over 500,000 hours of rigorous validation and are backed by a 5-year Synology limited warranty.
| SKU: | B0CC21S17J |
| Weight: | 1.81 pounds |
| Dimensions: | 8.78 x 6.06 x 2.95 inches |
| Brand: | Synology |
| Model: | HAT5310-20T |
| Manufacture: | Synology |
| Origin: | Philippines |
From the manufacturer
Enterprise storage drives for Synology systems
For demanding 24/7 environments
Synology HAT5300 series HDDs are engineered for demanding, high-volume workloads and feature deep integration with DSM which allows for actionable analytics and one-click firmware updates.
Maximum endurance & reliability
With an MTTF rating of up to 2.5 million hours, the HAT5310 series HDD supports a workload of 550 TB per year and persistent write cache technology to minimize data corruption in the event of sudden power loss.
Rigorous validation of Synology hard drives
Over 500,000 hours of stress testing with Synology devices ensure that HAT5300 series drives can withstand even the most demanding enterprise environments and deliver highly reliable, enterprise-grade performance.
- Designed to tackle demanding, high-volume workloads concurrently, from surveillance to storage
- Persistent Write Caching minimizes the chance of data corruption in the event of sudden power loss
- Firmware and DSM optimizations improve multi-client sequential read performance by up to 23%
- Get one-click firmware updates through DSM, reducing the need for additional maintenance sessions
 |  |  |  |  |  | |
|---|---|---|---|---|---|---|
| HAT5300-4TB | HAT5310-8TB | HAT5300-12TB | HAT5300-16TB | HAT5310-18TB | HAT5310-20TB | |
| See Details | ||||||
| Customer Reviews | 4.5 out of 5 stars 5 | 4.7 out of 5 stars 18 | 4.7 out of 5 stars 7 | 3.8 out of 5 stars 6 | 3.8 out of 5 stars 6 | 3.8 out of 5 stars 6 |
| Price | $189.99 | $235.00 | $449.99 | $299.99 | — | $719.99 |
| Capacity | 4 TB | 8 TB | 12 TB | 16 TB | 18 TB | 20 TB |
| Maximum Sustained Data Transfer Speed (Typ.) | 255 MB/s | 260 MB/s | 254 MB/s | 275 MB/s | 281 MB/s | 281 MB/s |
| Mean Time to Failure (MTTF) | 2 million hours | 2 million hours | 2.5 million hours | 2.5 million hours | 2.5 million hours | 2.5 million hours |
| Active Idle Power | 4.07 W | 5.61 W | 4.25 W | 4.00 W | 4.16 W | 4.38 W |
| 4K Random Write Power | 7.76 W | 9.29 W | 7.83 W | 7.63 W | 8.35 W | 8.11 W |
| Cache (MB) | 256 | 512 | 256 | 256 | 512 | 512 |
* Performance testing was conducted by Synology using 12 drives on an SA3600, configured using RAID 5, against similar class drives (Enterprise) with IOMeter (64KB blocks). Actual performance may vary depending on workload, testing methods, and how devices and software are configured.
** Mean Time Between Failure (MTBF) is not an estimate of product life; it is a statistical value related to mean failure rates for a large number of products which may not accurately reflect actual operation. Actual operating life of the product may be different from the MTBF.
*** The average update time data for 3rd party drives was calculated by multiplying the time required for updating a single drive by 24. The average update time is based on tests conducted using a Synology system fitted with 24 Synology drives.