The 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write costs $0.4154/GB while the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 costs $0.1426/GB. 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers 66% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write vs 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 — Which Is Better Value?
Specification Comparison
| Spec | 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write | 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 |
|---|---|---|
| Brand | Transcend | Transcend |
| Capacity | 512GB | 512GB |
| $/GB | $0.4154 | $0.1426 |
| Price | $212.70 | $72.99 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | 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 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write at $0.4154//GB — that's roughly 66% 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 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write starts at $212.70 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 CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write and 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 product page for detailed specifications and price history.
Frequently Asked Questions
Is 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write or 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 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 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write at $0.4154//GB. That is approximately 66% better value per gigabyte.
What is the price per GB of 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write?
The 512GB Transcend CFexpress 820 Type B Memory Card 1700MB/s Read 1300MB/sec Write is currently priced at $0.4154/GB ($212.70 for 512GB) at Newegg.
Where can I buy 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 for the cheapest price?
The cheapest price for the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 is $72.99 at Newegg, which works out to $0.1426/GB.