WD Ultrastar DC HC560 20TB - 7200 RPM 512MB SATA III Enterprise HDD - 0F38785 (SATA SE)
WD Ultrastar DC HC560 20TB enterprise HDD — 7200 RPM, 512MB cache, SATA III 6Gb/s, up to 291 MiB/s sustained, 550 TB/yr workload, 2.5M hr MTBF, OptiNAND & HelioSeal tech.
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Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| Storage (SSD & HDD) - Device Type | Internal HDD |
|---|---|
| Storage (SSD & HDD) - Capacity | 20TB |
| Storage (SSD & HDD) - RPM (HDD) | 7200 RPM |
| Storage (SSD & HDD) - Interface | SATA III |
| Storage (SSD & HDD) - Cache (HDD) | 512MB |
| Storage (SSD & HDD) - Form Factor | 3.5 inch |
The WD Ultrastar DC HC560 is a high-capacity 20TB enterprise hard drive designed for data centers, cloud storage, hyperscale environments, and 24/7 operation. Featuring 7200 RPM spindle speed, 512MB cache, and SATA III 6Gb/s interface, it delivers sustained transfer rates up to 291 MiB/s. Advanced technologies including OptiNAND, EAMR (Energy-Assisted Magnetic Recording), TSA (Triple Stage Actuator), and 7th-generation HelioSeal helium-sealed design ensure reliability, power efficiency, and compatibility with all-capacity enterprise applications.
Built on a nine-disk platform (2.2TB/platter) with CMR recording, this 3.5-inch drive offers an industry-leading 2.5 million hours MTBF, 550 TB/year workload rating, and 5-year limited warranty. Model 0F38785 is the SATA SE (Standard Encrypt) variant; SED self-encrypting options available separately. Ideal for massive scale-out storage, distributed file systems, big data analytics, and bulk storage solutions like Ceph.
- ✅ 20TB capacity, 7200 RPM, 512MB cache
- ✅ SATA III 6Gb/s, up to 291 MiB/s sustained
- ✅ 2.5M hours MTBF, 550 TB/yr workload
- ✅ OptiNAND, EAMR, HelioSeal technologies
- ✅ 5-year warranty, enterprise-grade reliability
| HDD capacity | 20 TB |
| HDD speed | 7200 RPM |
| Storage drive buffer size | 512 MB |
| HDD size | 3.5 |
| Interface | Serial ATA (SATA III 6Gb/s) |
| Type | HDD |
| Component for | Server/workstation, Data center |
| HDD interface transfer rate | 6 Gbit/s |
| HDD sustained transfer rate | 291 MiB/s |
| Average latency | 4.16 ms |
| Workload rate limit | 550 TB/year |
| Mean time between failures (MTBF) | 2.5 million hours |
| Limited warranty | 5 years |
| Recording technology | CMR, ePMR, EAMR |
| Areal density | 1131 Gbits/sq. in. |
| Operating temperature (T-T) | 5 - 60 °C |
| Width | 101.6 mm |
| Height | 147 mm |
| Depth | 26.1 mm |
| Weight | 690 g |
| Model Number | 0F38785 (SATA SE) |
| Security | SED available (separate model) |
| Form Factor | 3.5-inch |
| HelioSeal | Yes (7th generation) |
| OptiNAND | Yes |