The Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black costs $0.0222/GB while the Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA costs $0.0473/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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA — Which Is Better Value?
Specification Comparison
| Spec | Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black | Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 18TB | 20TB |
| $/GB | $0.0222 | $0.0473 |
| Price | $399.00 | $945.64 |
| 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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA at $0.0473//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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA starts at $945.64 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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA 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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA 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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA at $0.0473//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 Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA for the cheapest price?
The cheapest price for the Western Digital Ultrastar DC HC560 0F38785 20 TB Hard Drive 3.5' Internal SATA is $945.64 at Newegg, which works out to $0.0473/GB.