Western Digital Ultrastar DC HC550 18TB - 7200 RPM 512MB SATA III Enterprise HDD - WUH721818ALE6L4 (0F38459)
€846.00
Tax included
Western Digital Ultrastar DC HC550 18TB Enterprise HDD. 7200 RPM, 512MB Cache, SATA 6Gb/s. Features HelioSeal, Energy-Assisted Magnetic Recording (EAMR), and Triple Stage Actuator (TSA) for data centers.
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 | 18TB |
| Storage (SSD & HDD) - Interface | SATA III |
| Storage (SSD & HDD) - Form Factor | 3.5 inch |
| Storage (SSD & HDD) - RPM (HDD) | 7200 RPM |
| Storage (SSD & HDD) - Cache (HDD) | 512MB |
The Western Digital Ultrastar DC HC550 18TB HDD sets a new standard for total cost of ownership (TCO) in data center environments. Built on a proven 9-disk HelioSeal platform, this drive delivers massive capacity while maintaining low power profiles. It is the industry's first commercial implementation of Energy-Assisted Magnetic Recording (EAMR) technology, which improves writability and increases areal density, allowing for 18TB of storage in a standard 3.5-inch form factor.
Designed for heavy 24/7 workloads, the DC HC550 features a Triple Stage Actuator (TSA) for more precise head positioning, ensuring reliable performance even in high-vibration multi-drive server chassis. With a workload rating of up to 550TB per year and a 2.5 million hour MTBF, this drive is engineered to handle the most demanding big data, cloud storage, and hyperscale applications. Its SATA 6Gb/s interface ensures broad compatibility with enterprise storage systems.
- 18TB Capacity with HelioSeal Technology
- Energy-Assisted Magnetic Recording (EAMR)
- Triple Stage Actuator (TSA) for precision
- 7200 RPM Performance with 512MB Cache
- 2.5 Million Hours MTBF & 550TB/yr Workload Rating
| Model Number | WUH721818ALE6L4 |
| Series | Ultrastar DC HC550 |
| Interface | SATA 6Gb/s |
| Capacity | 18 TB |
| Form Factor | 3.5 inch |
| Format | 512e / SE (Secure Erase) |
| Spindle Speed | 7200 RPM |
| Cache | 512 MB |
| Sustained Transfer Rate | 269 MB/s (257 MiB/s) |
| Average Latency | 4.16 ms |
| MTBF | 2,500,000 hours |
| Workload Rate | 550 TB/year |
| Power Consumption (Operating) | 6.5 W |
| Power Consumption (Idle) | 5.6 W |
| Operating Temperature | 5°C - 60°C |
| Non-operating Shock | 250 G (2ms) |
| Operating Shock | 50 G (2ms) |
| Acoustics (Idle/Seek) | 20 / 36 dBA |
| Technology | HelioSeal, EAMR, TSA |
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