The WD - easystore 20TB External USB 3.0 Hard Drive - Black costs $0.0220/GB while the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) costs $0.0289/GB. WD - easystore 20TB External USB 3.0 Hard Drive - Black offers 24% better value per gigabyte as of March 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - easystore 20TB External USB 3.0 Hard Drive - Black vs Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) — Which Is Better Value?
WD - easystore 20TB External USB 3.0 Hard Drive - Black
Specification Comparison
| Spec | WD - easystore 20TB External USB 3.0 Hard Drive - Black | Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 20 TB | 18TB |
| $/GB | $0.0220 | $0.0289 |
| Price | $439.99 | $520.00 |
| Retailer | Best Buy | Newegg |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD - easystore 20TB External USB 3.0 Hard Drive - Black offers better value at $0.0220//GB compared to the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) at $0.0289//GB — that's roughly 24% less per gigabyte.
The best deal for the WD - easystore 20TB External USB 3.0 Hard Drive - Black is $439.99 at Best Buy, while the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) starts at $520.00 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 - easystore 20TB External USB 3.0 Hard Drive - Black and Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - easystore 20TB External USB 3.0 Hard Drive - Black or Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) a better deal?
As of March 2026, WD - easystore 20TB External USB 3.0 Hard Drive - Black offers better value at $0.0220//GB compared to Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) at $0.0289//GB. That is approximately 24% better value per gigabyte.
What is the price per GB of WD - easystore 20TB External USB 3.0 Hard Drive - Black?
The WD - easystore 20TB External USB 3.0 Hard Drive - Black is currently priced at $0.0220/GB ($439.99 for 20 TB) at Best Buy.
Where can I buy Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) for the cheapest price?
The cheapest price for the Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA-600) is $520.00 at Newegg, which works out to $0.0289/GB.