The Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B costs $0.0509/GB while the Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) costs $0.0319/GB. Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) offers 37% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B vs Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) — Which Is Better Value?
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Specification Comparison
| Spec | Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B | Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 18TB | 16 TB |
| $/GB | $0.0509 | $0.0319 |
| Price | $917.06 | $509.99 |
| Retailer | Newegg | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) offers better value at $0.0319//GB compared to the Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B at $0.0509//GB — that's roughly 37% less per gigabyte.
The best deal for the Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) is $509.99 at Amazon, while the Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B starts at $917.06 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 STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B and Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B or Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) a better deal?
As of September 2026, Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) offers better value at $0.0319//GB compared to Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B at $0.0509//GB. That is approximately 37% better value per gigabyte.
What is the price per GB of Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B?
The Seagate One Touch STLC18000400 18 TB Hard Drive - 3.5' External - SATA (SATA/600) - Black - USB 3.0 Micro-B is currently priced at $0.0509/GB ($917.06 for 18TB) at Newegg.
Where can I buy Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) for the cheapest price?
The cheapest price for the Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400) is $509.99 at Amazon, which works out to $0.0319/GB.