Western Digital
Refurbished WD Ultrastar DC HC550 18TB 3.5" SATA SE CMR HDD WUH721818ALE6L4 OEM
Refurbished WD Ultrastar DC HC550 18TB 3.5" SATA SE CMR HDD WUH721818ALE6L4 OEM
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Refurbished — Excellent Condition
The WD Ultrastar DC HC550 18TB (WUH721818ALE6L4) is an enterprise-grade 3.5" SATA hard drive, supplied in excellent condition with 100% SMART health. Each unit is thoroughly tested before dispatch. SMART data from a sample unit is provided for reference — power-on time and cycle counts of the actual unit may vary.
Key Specifications
| Model | WUH721818ALE6L4 |
| Capacity | 18TB |
| Form Factor | 3.5" |
| Interface | SATA (6Gb/s) |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Drive Class | Enterprise / Ultrastar DC HC550 |
| Condition | Third Party Refurbished |
| Packaging | OEM |
Who Is This For?
This drive is ideal for:
- NAS users needing high-capacity, reliable storage for home or small business
- IT professionals building cost-effective enterprise storage arrays
- Content creators requiring large, fast local storage for video and media files
- Data hoarders and archivists looking for maximum capacity per dollar
Multipack Options
Available in 1-Pack, 2-Pack, and 4-Pack configurations — perfect for building or expanding a NAS array. Bulk pricing is reflected in the variant pricing above.
Warranty Options
Choose from 3 Months or 12 Months Australian store warranty at checkout.
- Warranty covers hardware faults only
- Data protection and backup are the responsibility of the user
- Warranty is provided by Neology Technology, not the manufacturer
We recommend confirming compatibility with your specific systems and devices before purchasing.
Shipping
📦 Dispatched from Melbourne, Australia. Fast, reliable delivery Australia-wide.
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5.0 / 5.0
(2) 2 total reviews

Came with about 4.5 years of power on time (according the smart status). But otherwise perfect smart stats. Nice to see Helium @ 100% (I've had new drives doa with low Helium).
Filled disk with zero + verify (i.e. UNRAID preclear - takes a few days). Zero issues or smart errors - Disc is working great so far.