The Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 costs $0.0367/GB while the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black costs $0.0168/GB. WD Elements 16TB USB 3.0 Desktop External Hard Drive Black offers 54% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 vs WD Elements 16TB USB 3.0 Desktop External Hard Drive Black — Which Is Better Value?
WD Elements 16TB USB 3.0 Desktop External Hard Drive Black
Specification Comparison
| Spec | Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 | WD Elements 16TB USB 3.0 Desktop External Hard Drive Black |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 18TB | 16TB |
| $/GB | $0.0367 | $0.0168 |
| Price | $659.97 | $268.94 |
| 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 16TB USB 3.0 Desktop External Hard Drive Black offers better value at $0.0168//GB compared to the Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 at $0.0367//GB — that's roughly 54% less per gigabyte.
The best deal for the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black is $268.94 at Newegg, while the Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 starts at $659.97 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 and WD Elements 16TB USB 3.0 Desktop External Hard Drive Black product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 or WD Elements 16TB USB 3.0 Desktop External Hard Drive Black a better deal?
As of June 2026, WD Elements 16TB USB 3.0 Desktop External Hard Drive Black offers better value at $0.0168//GB compared to Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 at $0.0367//GB. That is approximately 54% better value per gigabyte.
What is the price per GB of Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000?
The Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000 is currently priced at $0.0367/GB ($659.97 for 18TB) at Newegg.
Where can I buy WD Elements 16TB USB 3.0 Desktop External Hard Drive Black for the cheapest price?
The cheapest price for the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black is $268.94 at Newegg, which works out to $0.0168/GB.