The Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black costs $0.0222/GB while the Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive costs $0.0467/GB. Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers 53% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black vs Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black | Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 18TB | 20TB |
| $/GB | $0.0222 | $0.0467 |
| Price | $399.00 | $935.00 |
| 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 Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers better value at $0.0222//GB compared to the Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive at $0.0467//GB — that's roughly 53% less per gigabyte.
The best deal for the Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black is $399.00 at Newegg, while the Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive starts at $935.00 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black and Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black or Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive a better deal?
As of June 2026, Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers better value at $0.0222//GB compared to Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive at $0.0467//GB. That is approximately 53% better value per gigabyte.
What is the price per GB of Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black?
The Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black is currently priced at $0.0222/GB ($399.00 for 18TB) at Newegg.
Where can I buy Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive for the cheapest price?
The cheapest price for the Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive is $935.00 at Newegg, which works out to $0.0467/GB.