The WD Elements 16TB USB 3.0 Desktop External Hard Drive Black costs $0.0168/GB while the Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive costs $0.0469/GB. WD Elements 16TB USB 3.0 Desktop External Hard Drive Black offers 64% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Elements 16TB USB 3.0 Desktop External Hard Drive Black vs Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive — Which Is Better Value?
WD Elements 16TB USB 3.0 Desktop External Hard Drive Black
Specification Comparison
| Spec | WD Elements 16TB USB 3.0 Desktop External Hard Drive Black | Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 16TB | 18TB |
| $/GB | $0.0168 | $0.0469 |
| Price | $268.94 | $845.00 |
| 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 Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive at $0.0469//GB — that's roughly 64% 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 Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive starts at $845.00 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 16TB USB 3.0 Desktop External Hard Drive Black and Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Elements 16TB USB 3.0 Desktop External Hard Drive Black or Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive 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 Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive at $0.0469//GB. That is approximately 64% better value per gigabyte.
What is the price per GB of WD Elements 16TB USB 3.0 Desktop External Hard Drive Black?
The WD Elements 16TB USB 3.0 Desktop External Hard Drive Black is currently priced at $0.0168/GB ($268.94 for 16TB) at Newegg.
Where can I buy Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive for the cheapest price?
The cheapest price for the Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive is $845.00 at Newegg, which works out to $0.0469/GB.