The SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray costs $0.0800/GB while the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) costs $0.0375/GB. HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers 53% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray vs HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) — Which Is Better Value?
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Specification Comparison
| Spec | SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray | HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) |
|---|---|---|
| Brand | G-DRIVE | HGST |
| Capacity | 4 TB | 4TB |
| $/GB | $0.0800 | $0.0375 |
| Price | $319.99 | $150.00 |
| Retailer | Best Buy | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers better value at $0.0375//GB compared to the SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray at $0.0800//GB — that's roughly 53% less per gigabyte.
The best deal for the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) is $150.00 at Newegg, while the SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray starts at $319.99 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 Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray and HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray or HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) a better deal?
As of August 2026, HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) offers better value at $0.0375//GB compared to SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray at $0.0800//GB. That is approximately 53% better value per gigabyte.
What is the price per GB of SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray?
The SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray is currently priced at $0.0800/GB ($319.99 for 4 TB) at Best Buy.
Where can I buy HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) for the cheapest price?
The cheapest price for the HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600) is $150.00 at Newegg, which works out to $0.0375/GB.