The 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 costs $0.1426/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 $0.2422/GB. 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers 41% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 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?
Specification Comparison
| Spec | 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 | 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 | Transcend | AGI |
| Capacity | 512GB | 512GB |
| $/GB | $0.1426 | $0.2422 |
| Price | $72.99 | $123.99 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers better value at $0.1426//GB compared to 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,... at $0.2422//GB — that's roughly 41% less per gigabyte.
The best deal for the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 is $72.99 at Newegg, 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,... starts at $123.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 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 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 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 May 2026, 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers better value at $0.1426//GB compared to 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,... at $0.2422//GB. That is approximately 41% better value per gigabyte.
What is the price per GB of 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30?
The 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 is currently priced at $0.1426/GB ($72.99 for 512GB) at Newegg.
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 $123.99 at Newegg, which works out to $0.2422/GB.