The WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black costs $0.0342/GB while the Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray costs $0.0675/GB. WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black offers 49% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black vs Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray — Which Is Better Value?
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Specification Comparison
| Spec | WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black | Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray |
|---|---|---|
| Brand | Western Digital | Rocstor |
| Capacity | 18TB | 20TB |
| $/GB | $0.0342 | $0.0675 |
| Price | $614.99 | $1349.59 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black offers better value at $0.0342//GB compared to the Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray at $0.0675//GB — that's roughly 49% less per gigabyte.
The best deal for the WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black is $614.99 at Newegg, while the Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray starts at $1349.59 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black and Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black or Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray a better deal?
As of August 2026, WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black offers better value at $0.0342//GB compared to Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray at $0.0675//GB. That is approximately 49% better value per gigabyte.
What is the price per GB of WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black?
The WD Elements 18TB USB 3.0 Desktop External Hard Drive NE-WDBWLG0180HBK-NESN Black is currently priced at $0.0342/GB ($614.99 for 18TB) at Newegg.
Where can I buy Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray for the cheapest price?
The cheapest price for the Rocstor Rocpro D90 20 TB Desktop Rugged Hard Drive External SATA SATA/600 Aluminum Gray is $1349.59 at Newegg, which works out to $0.0675/GB.