SanDisk Extreme PRO 128GB
Score: 85/100
ProGrade Digital Iridium 256GB
Score: 47/100Rankings
The SanDisk 128 GB Extreme PRO SDXC UHS-II card offers ultra-fast 300 MB/s read/write performance, V90 video capability, and rugged IP68 durability, making it ideal for demanding 6K/8K video and high-speed burst photography. Compatibility is broad, though some users report issues with specific Canon models and older readers.
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 | |
300 MB/sbest | 275 MB/s | |
30 yearsbest | 3 years | |
| ↓ lower better | 1.67 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) | 300 MB/s | 275 MB/s |
Compatibility(1) | ||
Compatible Devices | Devices supporting SDXC UHS‑II | Canon, Sony, Nikon, Olympus, Panasonic, Fuji, Samsung |
Warranty(1) | ||
Warranty Period (years) | 30 years | 3 years |
Physical(1) | ||
Weight (g) | 1.67 g | 15.9 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consistently rate the card as a top-tier choice for demanding video and burst-mode photography, praising its ability to handle 6K/8K footage, its rugged IP68 construction, and its high read/write speeds, while cautioning buyers to verify the exact model (V60 vs V90) and to use UHS-II-compatible hardware to unlock its full potential.
Everyday users love the card's reliability and speed, noting years of trouble-free use and rapid offloads, but many express frustration over occasional Canon R5 Mark II video glitches, speed drops on older readers, and confusion over V60 versus V90 labeling.
“Multiple users report using SanDisk cards for years without failure.”
“Users appreciate fast offloads - e.g., 1000 photos (24 MP) transferred in under 4 minutes.”
“no dropped frames or errors”
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™.
