
Kingston Canvas React Plus 128GB
Score: 96/100
ProGrade Digital Iridium 256GB
Score: 47/100Rankings

A high-performance 128 GB SDXC UHS-II card designed for professional 8K video and fast burst photography, offering top-tier speeds and rugged durability.

The ProGrade Digital Iridium 256 GB UHS-II V90 SDXC card delivers ultra-fast read/write performance and rugged durability, making it ideal for high-bitrate 4K/6K video and RAW burst photography.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GB | 256 GBbest | |
300 MB/sbest | 300 MB/sbest | |
260 MB/s | 275 MB/sbest | |
— | 3 yearsbest | |
| ↓ lower better | 10 gbest | 15.9 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage & Capacity(1) | ||
Capacity (GB) | 128 GB | 256 GB |
Performance(1) | ||
Maximum Write Speed (MB/s) | 260 MB/s | 275 MB/s |
Physical(1) | ||
Weight (g) | 10 g | 15.9 g |

Products in the top-left offer the best value (high score, low price).

Professional reviewers hail it as a cinema-grade card with industry-leading write speeds and rugged reliability, ideal for demanding 8K workflows.
Users praise flawless 4K/8K recording and rapid transfers, while noting occasional compatibility issues on older gear.

“smooth 4K and 8K recording with no lag or corruption”

“no dropped frames or errors”

“flawless 4K video recording”



Professional reviewers from B&H, Leica Camera USA and Filmtools commend the Iridium 256 GB card for its rock-solid reliability, V90 certification and error-correction, highlighting its suitability for high-end DSLR, mirrorless and cinema cameras.
Everyday users consistently rate the card five stars, praising flawless 4K recording, lack of dropped frames and the usefulness of Refresh Pro™.