1 / 2WD Ultrastar DC HC550 18TB SATA 3.5" 7200RPM CMR Helium HDD WUH721818ALE6L4
Brand: WESTERN DIGITAL
In stock
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- Ships from
- US
- Format
- Buy It Now
Sold by
absolutegoalsllc
109 feedback · 98.2 positive
Specifications
- Compatible With
- PC
- Color
- Silver
- MPN
- WUH721818ALE6L4
- Rotation Speed
- 7200 RPM
- Brand
- Western Digital
- Form Factor
- 3.5 in
- Type
- Internal Desktop Drive
- Unit Type
- Unit
- Drive Type(s) Supported
- HDD
- Storage Format
- HDD Only
- Features
- Hot Swap
- Storage Capacity
- 18 TB
- Interface
- SATA III
- Country of Origin
- Thailand
- Cache
- 512 MB
- Product Line
- Ultrastar
About this product
Western Digital Ultrastar DC HC550 18TB Enterprise Hard Drive (Used) One 18TB enterprise SATA hard drive for NAS systems, home labs, servers, backup repositories, and other high-capacity storage builds. Purchased from an enterprise hardware reseller and kept in climate-controlled storage. Condition & Testing * Conditio…Read full descriptionShow less
Western Digital Ultrastar DC HC550 18TB Enterprise Hard Drive (Used)
One 18TB enterprise SATA hard drive for NAS systems, home labs, servers, backup repositories, and other high-capacity storage builds. Purchased from an enterprise hardware reseller and kept in climate-controlled storage.
Condition & Testing
* Condition: Used
* Drive wiped before sale
Specifications
* Brand: Western Digital
* Product Line: Ultrastar DC HC550
* Model: WUH721818ALE6L4 (MPN 0F38459)
* Capacity: 18TB (about 16.4 TiB as reported by most operating systems)
* Form Factor: 3.5-inch
* Interface: SATA III 6Gb/s
* Spindle Speed: 7,200 RPM
* Recording Technology: CMR (Conventional Magnetic Recording)
* Cache: 512MB
* Sector Format: 512e
* Platform: HelioSeal helium-sealed design
* Workload Rating: Up to 550TB per year
* Projected MTBF: 2.5 million hours (a population-level design figure, not a guarantee of remaining service life)
Enterprise Design
* Built for continuous 24/7 operation in compatible systems
* CMR recording delivers consistent performance for bulk storage, backups, and file servers
* Runs warmer and louder than desktop drives; needs active airflow
- Before You Buy
* This is an internal SATA drive, not an external USB drive. It requires a SATA data connection, SATA power, and a 3.5-inch bay or mount.
* Please verify compatibility with your system, controller, NAS, or server before ordering.
* As with any used hard drive, remaining service life can vary.
What's Included
* One bare drive. No screws, sled, cables, or software.
Shipping
* Carefully packed to prevent damage in transit.
Warranty
* No seller warranty. Your purchase is covered by the eBay Money Back Guarantee.
* Manufacturer specifications describe the product design and are not a warranty for a used drive.
Description written by a seller of this product on eBay. Store, shipping, payment and contact text has been removed. Check each offer for that seller's own terms.
Compare offers
1 listing from 1 seller. Prices update periodically. Only one listing of this exact product was found; more sellers appear here as they are discovered.
- Lowest price
- $661.00
- Offers
- 1from 1 seller
| Seller | Condition | Ships from | Price | Shipping | Delivery & returns | Total | |
|---|---|---|---|---|---|---|---|
absolutegoalsllc via eBay 98.2% positive · 109 ratings Highly rated seller | Used | United States | $661.00Lowest price | $19.63 | Est. Oct 24 – Oct 26 | $680.63 | View Deal |
Seller ratings are the feedback eBay reports for each seller. "Highly rated" means at least 98% positive from at least 100 ratings. Total = price + shipping, shown only when the listing states its shipping cost.
Price history
Lowest price available each day, tracked since Oct 22, 2026 (7 days).
- Current lowest
- $661.00
- Previous price
- No change yet
- Lowest recorded
- $661.00
- Highest recorded
- $661.00
- Trend
- → Stable
- since Oct 22
The lowest price for all conditions has not changed in this period, so there is no trend to chart yet.
History is built only from prices this site observed, starting the day tracking began; nothing is estimated or back-filled. Each point is the lowest price among the offers available that day. Shipping, duties and taxes are not included.
