Western Digital Ultrastar WUH722018CLE604 – 18TB 7200 RPM SATA 6Gb/s 3.5-Inch Enterprise Hard Drive
The Western Digital Ultrastar WUH722018CLE604 is an 18TB enterprise-class 3.5-inch hard drive built for data centers, hyperscale storage, and high-density enterprise enclosures. Positioned above WD’s NAS (IronWolf/Red) and surveillance (SkyHawk) families, it suits buyers running continuous, heavy workloads such as object storage, cloud tiers, and large-scale RAID arrays. Note that as a mechanical CMR drive it fills capacity-optimized roles rather than latency-sensitive ones, where SSDs remain the better fit.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Capacity | 18 TB (helium-filled platform for high areal density) |
| Interface | SATA 6Gb/s (broad backward compatibility with SATA controllers) |
| Form Factor | 3.5-inch |
| Spindle Speed | 7200 RPM (typical for enterprise capacity, higher sustained throughput than 5400/5900 RPM classes) |
| Cache | 512 MB |
| Technology | HelioSeal® helium sealing for lower power and increased reliability |
| MTBF | 2.5 million hours (rated figure, guidance only) |
| Workload Rate Limit | Up to 550 TB/year (rated, guidance only) |
| Power Efficiency | Industry-leading watts-per-TB performance (qualitative vendor claim) |
| Vibration Protection | RAFF™ (Rotary Acceleration Feed Forward) and dual-stage actuator for stability in high-density environments |
Good to know
- The SATA 6Gb/s interface integrates easily into most servers and JBOD enclosures; verify backplane support for helium-sealed high-capacity drives and confirm your RAID controller tolerates 18TB sector layouts before deployment.
- Within Western Digital’s portfolio, the Ultrastar line targets enterprise and hyperscale duty cycles — heavier rated workloads than desktop or NAS-consumer drives — making it a fit for racks where the 550 TB/year rating and 2.5 million hour MTBF matter.
- Confirm the exact model number (WUH722018CLE604) and firmware when ordering, as enterprise drives are commonly offered in multiple interface and sector-format variants; verify bulk-pack condition and stock availability before committing to large quantities.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Western Digital Ultrastar WUH722018CLE604 is an 18TB enterprise-class 3.5-inch hard drive built for data centers, hyperscale storage, and high-density enterprise enclosures. Positioned above WD’s NAS (IronWolf/Red) and surveillance (SkyHawk) families, it suits buyers running continuous, heavy workloads such as object storage, cloud tiers, and large-scale RAID arrays. Note that as a mechanical CMR drive it fills capacity-optimized roles rather than latency-sensitive ones, where SSDs remain the better fit.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Capacity | 18 TB (helium-filled platform for high areal density) |
| Interface | SATA 6Gb/s (broad backward compatibility with SATA controllers) |
| Form Factor | 3.5-inch |
| Spindle Speed | 7200 RPM (typical for enterprise capacity, higher sustained throughput than 5400/5900 RPM classes) |
| Cache | 512 MB |
| Technology | HelioSeal® helium sealing for lower power and increased reliability |
| MTBF | 2.5 million hours (rated figure, guidance only) |
| Workload Rate Limit | Up to 550 TB/year (rated, guidance only) |
| Power Efficiency | Industry-leading watts-per-TB performance (qualitative vendor claim) |
| Vibration Protection | RAFF™ (Rotary Acceleration Feed Forward) and dual-stage actuator for stability in high-density environments |
Good to know
- The SATA 6Gb/s interface integrates easily into most servers and JBOD enclosures; verify backplane support for helium-sealed high-capacity drives and confirm your RAID controller tolerates 18TB sector layouts before deployment.
- Within Western Digital’s portfolio, the Ultrastar line targets enterprise and hyperscale duty cycles — heavier rated workloads than desktop or NAS-consumer drives — making it a fit for racks where the 550 TB/year rating and 2.5 million hour MTBF matter.
- Confirm the exact model number (WUH722018CLE604) and firmware when ordering, as enterprise drives are commonly offered in multiple interface and sector-format variants; verify bulk-pack condition and stock availability before committing to large quantities.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
