The Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS costs $0.0380/GB while the SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D costs $0.2336/GB. Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS offers 84% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS vs SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D — Which Is Better Value?
Specification Comparison
| Spec | Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS | SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D |
|---|---|---|
| Brand | Seagate | SanDisk |
| Capacity | 500 GB | 1TB |
| $/GB | $0.0380 | $0.2336 |
| Price | $18.99 | $233.59 |
| Retailer | Amazon | 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 Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS offers better value at $0.0380//GB compared to the SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D at $0.2336//GB — that's roughly 84% less per gigabyte.
The best deal for the Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS is $18.99 at Amazon, while the SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D starts at $233.59 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 Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS and SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS or SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D a better deal?
As of June 2026, Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS offers better value at $0.0380//GB compared to SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D at $0.2336//GB. That is approximately 84% better value per gigabyte.
What is the price per GB of Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS?
The Seagate Constellation 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 2.5 Inch Internal Hard Drive - Bare Drive ST9500530NS is currently priced at $0.0380/GB ($18.99 for 500 GB) at Amazon.
Where can I buy SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D for the cheapest price?
The cheapest price for the SanDisk G-DRIVE ArmorATD 1 TB Portable Hard Drive - 2.5' - External - Space Gray SDPH81G001TGBA1D is $233.59 at Newegg, which works out to $0.2336/GB.