The SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card costs $0.1094/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 74% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card 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 | SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card | Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk |
|---|---|---|
| Brand | SanDisk | Seagate |
| Capacity | 512 GB | 4 TB |
| $/GB | $0.1094 | $0.0287 |
| Price | $55.99 | $114.99 |
| Retailer | Best Buy | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | micro-sd | hdd |
Price Across Retailers
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 SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card at $0.1094//GB — that's roughly 74% 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 SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card starts at $55.99 at Best Buy.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card 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 SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card 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 SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card at $0.1094//GB. That is approximately 74% better value per gigabyte.
What is the price per GB of SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card?
The SANDISK - Ultra PLUS 512GB microSDXC UHS-I Memory Card is currently priced at $0.1094/GB ($55.99 for 512 GB) at Best Buy.
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.