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

Amazon Renewed

Amazon Renewed Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance

Name: 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
Brand: Amazon Renewed
SKU: B0FGHQKV2K

Status: Western Digital Internal Hard Drives 18Tb DC… (18TB hard drive): Unavailable on Amazon as of 2026-10-07 16:29 UTC. Closest in-stock match (same 18TB hard drive): Western Digital 18TB Elements Desktop External…, $761.88 on Amazon as of 2026-10-08 00:15 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $761.88 🛒 Search eBay for this model

Bottom line: The Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance is a specs-and-price decision rather than a crowd-consensus one in the external storage category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-07 16:29 UTC

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Currently unavailable on Amazon. Not the same product — an in-stock alternative with matching specs:

Same 18TB hard drive: Western Digital 18TB Elements Desktop External… — $761.88 on Amazon as of 2026-10-08 00:15 UTC (price may vary).

View Current Price — $761.88

Original listing (currently unavailable) → Compare to similar external storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Backed by Amazon Renewed's warranty and support channels

Cons

✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

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…

SpecPicks Verdict

SpecPicks scored Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Amazon Renewed's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

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 Count
Form Factor	3.5-inch
Media Speed	2,457,600 kilobytes_per_second
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
Data Transfer Rate	6 gigabits_per_second
Enclosure Material	Magnetic Disk Platters And Nand Flash
Additional Features	SMR Technology
Hard Disk Interface	Serial ATA
Warranty Description	90 days limited warranty
Customer Package Type	Standard packaging
Full listing title	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

Ready to buy?

Amazon shows no buyable offer for Western Digital Internal Hard Drives 18Tb DC… at the last check. The closest in-stock match with the same 18TB hard drive is Western Digital 18TB Elements Desktop External…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $761.88