The WD - Purple 4TB Surveillance Internal Hard Drive costs $0.0350/GB while the Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) costs $0.7030/GB. WD - Purple 4TB Surveillance Internal Hard Drive offers 95% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - Purple 4TB Surveillance Internal Hard Drive vs Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) — Which Is Better Value?
WD - Purple 4TB Surveillance Internal Hard Drive
Specification Comparison
| Spec | WD - Purple 4TB Surveillance Internal Hard Drive | Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) |
|---|---|---|
| Brand | Western Digital | Samsung |
| Capacity | 4 TB | 128 GB |
| $/GB | $0.0350 | $0.7030 |
| Price | $139.99 | $89.99 |
| Retailer | Best Buy | Best Buy |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0350//GB compared to the Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) at $0.7030//GB — that's roughly 95% less per gigabyte.
The best deal for the WD - Purple 4TB Surveillance Internal Hard Drive is $139.99 at Best Buy, while the Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) starts at $89.99 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 WD - Purple 4TB Surveillance Internal Hard Drive and Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - Purple 4TB Surveillance Internal Hard Drive or Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) a better deal?
As of May 2026, WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0350//GB compared to Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) at $0.7030//GB. That is approximately 95% 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 $0.0350/GB ($139.99 for 4 TB) at Best Buy.
Where can I buy Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) for the cheapest price?
The cheapest price for the Samsung - microSDXC T9 128GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH128T/WW) is $89.99 at Best Buy, which works out to $0.7030/GB.