Western Digital
Western Digital Ultrastar DC HC550 16TB 7200RPM SATA 6.0Gb/s 512MB 3.5-inch internal hard drive
Enterprise 16 TB hard drive with 7200 RPM, 512 MB cache and SATA 6.0 Gb/s interface for high-capacity storage
- InterfaceSATA 6.0Gb/s
- Capacity16TB
- Cache512MB
- UsageFor Enterprise Storage
- Form Factor3.5"
- 16TB capacity stores massive datasets
- 7200 RPM spindle speed enables fast sequential access
- 512MB cache buffers bursts for smoother throughput
- Energy-Assisted Magnetic Recording boosts areal density
- Triple Stage Actuator sharpens head positioning for reliability
Capacity and interface
The Western Digital Ultrastar DC HC550 is a 16TB 3.5-inch internal hard drive built for enterprise storage arrays. Its SATA 6.0Gb/s interface and 7200 RPM spindle speed suit servers and NAS units that need high-capacity bulk storage. The 512MB cache helps smooth heavy read and write workloads in multi-user environments.
Sustained workload behaviour
Energy-Assisted Magnetic Recording and a Triple Stage Actuator combine on a nine-disk platform to maintain areal density and head-positioning accuracy during long write sequences. The drive delivers consistent throughput for sequential workloads such as backup, archival and video surveillance recording. Enterprise firmware optimises command queuing for steady performance under continuous duty cycles.
Thermals, noise and power
The HC550 is designed for low power consumption in dense rack deployments, reducing heat output per terabyte compared to previous high-capacity models. Advanced power management modes spin the motor down during idle periods to cut draw further. Acoustic output remains within typical enterprise 3.5-inch drive limits for data-centre aisle environments.
Highlights
- 16TB capacity stores massive datasets
- 7200 RPM spindle speed enables fast sequential access
- 512MB cache buffers bursts for smoother throughput
- Energy-Assisted Magnetic Recording boosts areal density
- Triple Stage Actuator sharpens head positioning for reliability
Specifications
| Brand | Western Digital |
|---|---|
| Series | Ultrastar DC HC550 |
| Part Number | WUH721816ALE6L4 |
| Interface | SATA 6.0Gb/s |
| Capacity | 16TB |
| Cache | 512MB |
| Usage | For Enterprise Storage |
| Form Factor | 3.5" |
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