WD Ultrastar DC HC550 18TB Enterprise HDD WD-HC550-18TB
Brand: Western Digital | Category: Enterprise HDDs
SKU: WD-HC550-18TB | Part #: WD-HC550-18TB | MPN: WD-HC550-18TB
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About the WD Ultrastar DC HC550 18TB Enterprise HDD WD-HC550-18TB
The WD Ultrastar DC HC550 18TB Enterprise HDD WD-HC550-18TB from Western Digital is enterprise-grade Enterprise HDDs hardware built for data centers. It features 18TB capacity, 3.5" form factor, SATA 6Gb/s interface, 7,200 RPM speed. The Western Digital Ultrastar DC HC550 18TB is a high-capacity enterprise hard disk drive engineered for demanding data center environments where density, reliability, and sustained throughput are critical. Built on Conventional Magnetic Recording (CMR) technology, the drive delivers consistent, predictable write performance without the complexity of host-managed or device-managed SMR architectures, making it well-suited for workloads requiring reliable random write I/O. The Available in brand new condition. Western Digital enterprise hdds products are trusted by enterprises and data centers worldwide. Available from Omnixon Global. Contact our sales team to request a quote.
Technical Specifications
| Brand | Western Digital |
| Category | Enterprise HDDs |
| SKU | WD-HC550-18TB |
| Part Number | WD-HC550-18TB |
| Condition | New |
| Capacity | 18TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Speed | 7,200 RPM |
| Model Series | DC HC550 |
| Manufacturer Part Number | WD-HC550-18TB |
| Formatted Capacity | 18TB |
| Interface | SATA 6Gb/s |
| Rotational Speed | 7200 RPM |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Areal Density | Helium-sealed multi-platter CMR |
| Form Factor | 3.5-inch |
| Cache (Buffer) | 512MB |
| Workload Rate | 550TB/year |
| MTBF | 2,500,000 hours |
| Load/Unload Cycles | 600,000 |
| Operating Temperature | 0°C to 60°C |
| Power Consumption (Active, Typical) | Approximately 7.4W |
| Vibration Compensation | Dual-stage actuator (RVFF sensors) |
| Enclosure Technology | HelioSeal (helium-filled) |
| Sectors per Track | 4Kn and 512e sector options available |
| Dimensions (H x W x D) | 26.1mm x 101.6mm x 146.99mm |
| Weight | Approximately 650g |
| RoHS Compliance | Yes |
Frequently Asked Questions about WD Ultrastar DC HC550 18TB Enterprise HDD WD-HC550-18TB
What does the WD Ultrastar DC HC550 18TB Enterprise HDD do?
the WD Ultrastar DC HC550 18TB Enterprise HDD suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. It is supported by major server platforms.
What are the headline specs of the WD Ultrastar DC HC550 18TB Enterprise HDD?
Key specifications for the WD Ultrastar DC HC550 18TB Enterprise HDD: new condition; capacity 18TB; interface SATA 6Gb/s; form factor 3.5 inch; rpm 7200; recording technology CMR; cache 512MB. Manufacturer part number WD-HC550-18TB. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.