The WD - Purple 4TB Surveillance Internal Hard Drive costs $0.0262/GB while the Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive costs $0.2700/GB. WD - Purple 4TB Surveillance Internal Hard Drive offers 90% better value per gigabyte as of March 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - Purple 4TB Surveillance Internal Hard Drive vs Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive — Which Is Better Value?
WD - Purple 4TB Surveillance Internal Hard Drive
Specification Comparison
| Spec | WD - Purple 4TB Surveillance Internal Hard Drive | Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive |
|---|---|---|
| Brand | Western Digital | Western Digital |
| Capacity | 4 TB | 1 TB |
| $/GB | $0.0262 | $0.2700 |
| Price | $104.99 | $269.99 |
| Retailer | Best Buy | Amazon |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0262//GB compared to the Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive at $0.2700//GB — that's roughly 90% less per gigabyte.
The best deal for the WD - Purple 4TB Surveillance Internal Hard Drive is $104.99 at Best Buy, while the Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive starts at $269.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - Purple 4TB Surveillance Internal Hard Drive and Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - Purple 4TB Surveillance Internal Hard Drive or Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive a better deal?
As of March 2026, WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0262//GB compared to Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive at $0.2700//GB. That is approximately 90% better value per gigabyte.
What is the price per GB of WD - Purple 4TB Surveillance Internal Hard Drive?
The WD - Purple 4TB Surveillance Internal Hard Drive is currently priced at $0.0262/GB ($104.99 for 4 TB) at Best Buy.
Where can I buy Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive for the cheapest price?
The cheapest price for the Western Digital 1TB WD Red SA500 NAS 3D NAND Internal SSD - SATA III 6 Gb/s, 2.5"/7mm, Up to 560 MB/s - WDS100T1R0A, Solid State Hard Drive is $269.99 at Amazon, which works out to $0.2700/GB.