The 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black costs $0.0843/GB while the Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk costs $0.0287/GB. Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk offers 66% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black vs Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk — Which Is Better Value?
Specification Comparison
| Spec | 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black | Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk |
|---|---|---|
| Brand | Generic | Seagate |
| Capacity | 320 GB | 4 TB |
| $/GB | $0.0843 | $0.0287 |
| Price | $26.99 | $114.99 |
| Retailer | Amazon | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black
Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk
Which Should You Buy?
Based on current pricing data, the Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk offers better value at $0.0287//GB compared to the 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black at $0.0843//GB — that's roughly 66% less per gigabyte.
The best deal for the Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk is $114.99 at Amazon, while the 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black starts at $26.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black and Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk product page for detailed specifications and price history.
Frequently Asked Questions
Is 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black or Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk a better deal?
As of May 2026, Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk offers better value at $0.0287//GB compared to 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black at $0.0843//GB. That is approximately 66% better value per gigabyte.
What is the price per GB of 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black?
The 320GB External Hard Drive, USB 3.1 Type-C Portable HDD, Ultra-Slim 2.5-Inch Backup Storage for PC, Laptop, Tablet & Gaming Console – Black is currently priced at $0.0843/GB ($26.99 for 320 GB) at Amazon.
Where can I buy Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk for the cheapest price?
The cheapest price for the Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk is $114.99 at Amazon, which works out to $0.0287/GB.