The Samsung - P9 Express 512GB microSDXC Memory Card costs $0.6250/GB while the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... costs $0.1953/GB. AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... offers 69% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Samsung - P9 Express 512GB microSDXC Memory Card vs AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... — Which Is Better Value?
Samsung - P9 Express 512GB microSDXC Memory Card
Specification Comparison
| Spec | Samsung - P9 Express 512GB microSDXC Memory Card | AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... |
|---|---|---|
| Brand | Samsung | AGI |
| Capacity | 512 GB | 512GB |
| $/GB | $0.6250 | $0.1953 |
| Price | $319.99 | $99.99 |
| Retailer | Best Buy | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | micro-sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... offers better value at $0.1953//GB compared to the Samsung - P9 Express 512GB microSDXC Memory Card at $0.6250//GB — that's roughly 69% less per gigabyte.
The best deal for the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... is $99.99 at Newegg, while the Samsung - P9 Express 512GB microSDXC Memory Card 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 Samsung - P9 Express 512GB microSDXC Memory Card and AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... product page for detailed specifications and price history.
Frequently Asked Questions
Is Samsung - P9 Express 512GB microSDXC Memory Card or AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... a better deal?
As of June 2026, AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... offers better value at $0.1953//GB compared to Samsung - P9 Express 512GB microSDXC Memory Card at $0.6250//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of Samsung - P9 Express 512GB microSDXC Memory Card?
The Samsung - P9 Express 512GB microSDXC Memory Card is currently priced at $0.6250/GB ($319.99 for 512 GB) at Best Buy.
Where can I buy AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... for the cheapest price?
The cheapest price for the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... is $99.99 at Newegg, which works out to $0.1953/GB.