The SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... costs $0.6523/GB while the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ costs $0.0324/GB. Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers 95% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... vs Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ — Which Is Better Value?
Specification Comparison
| Spec | SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... | Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ |
|---|---|---|
| Brand | SanDisk | Western Digital |
| Capacity | 64GB | 4 TB |
| $/GB | $0.6523 | $0.0324 |
| Price | $41.75 | $129.77 |
| 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 Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to the SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... at $0.6523//GB — that's roughly 95% less per gigabyte.
The best deal for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, while the SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... starts at $41.75 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... and Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... or Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ a better deal?
As of May 2026, Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... at $0.6523//GB. That is approximately 95% better value per gigabyte.
What is the price per GB of SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA...?
The SanDisk Extreme 64GB microSD UHS-I Card with Adapter - 160MB/s U3 A2 - SDSQXA... is currently priced at $0.6523/GB ($41.75 for 64GB) at Newegg.
Where can I buy Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ for the cheapest price?
The cheapest price for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, which works out to $0.0324/GB.