Amazon Renewed
Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance,Wd 3.5 HDD Sata 6Gb/s 7200 PRM NAS 512 mb Cache for Dvr Nvr
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
In today's data-driven world, a reliable, high-performance, and high-capacity storage solution is not a luxury—it's a necessity. The Western Digital Ultrastar DC HC550 series enterprise hard drive is engineered to meet that demand. This 18TB 3.5-inch drive integrates Western Digital's cutting-edge technologies to satisfy the extreme requirements of modern data centers, cloud storage servers, enterprise NAS, and surveillance systems for capacity, performance, and reliability. The core OptiNAND technology seamlessly integrates flash with magnetic recording, optimizing write operations. This not…
SpecPicks Verdict
SpecPicks classifies Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance,Wd 3.… as a mid-pack option worth checking against alternatives in the external storage category, based on 31 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Amazon Renewed's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.1★ customer rating
- ✓ Backed by Amazon Renewed's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Outstanding Performance: The hard drive features a 7200 RPM speed and a 512MB cache, delivering excellent read/write speeds and large cache capacity, supporting various heavy workloads. Suitable for high-performance tasks.
- Helium Sealing Technology: Saves 30% power + 14TB high-density HelioSeal helium filling reduces friction, with operating power consumption as low as 5.1W (idle) / 6.8W (read/write), enabling a single chassis to deploy 1.4PB storage (100 bays).
- Efficient Read/Write Speeds: Sustained read/write speeds up to 260MB/s, significantly improving efficiency compared to traditional hard drives.
- Exceptional Durability: Annual write endurance (TBW) reaches 550TB, ensuring reliability and lifespan even under intense data writing conditions.
- Energy Saving: Intelligent power management technology improves energy efficiency per TB by 30% compared to similar products, with operating power consumption as low as 6.5W, reducing energy costs.
- High Reliability Design: Mean Time Between Failures (MTBF) reaches 2.5 million hours, ensuring long-term stable operation and data security, suitable for enterprise-level applications.
Full Specifications
| Brand | Western Digital |
|---|---|
| Model Name | DC HC550 |
| Read Speed | 260 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | 3.5-inch |
| Media Speed | 2,457,600 KBps |
| Model Number | DC HC550 |
| Built-In Media | No |
| Hard Disk Size | 18 TB |
| Hard-Drive Size | 18 TB |
| Number of Items | 1 |
| Special Feature | SMR Technology |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Camera, Desktop, Gaming Console, Laptop, Television |
Ready to buy?
Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance,Wd 3.5 HDD Sata 6Gb/s 7200 PRM NAS 512 mb Cache for Dvr Nvr is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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