
SanDisk Extreme 256GB
Score: 87/100
Kingston Canvas React Plus 256GB
Score: 99/100Rankings

The Kingston Canvas React Plus 256 GB SDXC UHS-II card offers professional-grade 280 MB/s read and 150 MB/s write speeds with a V60 rating, making it ideal for 4K video and high-resolution burst photography. Its rugged, waterproof design and lifetime warranty add reliability for demanding field work.

The SanDisk 256GB Extreme PRO UHS-I card offers high read/write performance and rugged durability, making it suitable for 4K video and burst photography. Its lifetime warranty and RescuePRO software add value, though the UHS-I interface caps ultimate speed potential.
| Attribute | ![]() | ![]() |
|---|---|---|
256 GBbest | 256 GBbest | |
200 MB/s | 280 MB/sbest | |
140 MB/s | 150 MB/sbest | |
| ↓ lower better | 13.6 g | 1.7 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(5) | ||
Video Speed Class | V30 | V60 |
Maximum Read Speed (MB/s) | 200 MB/s | 280 MB/s |
Maximum Write Speed (MB/s) | 140 MB/s | 150 MB/s |
Bus Interface | UHS-I | UHS-II |
Speed Class | C10 | Class 10 |
Physical(1) | ||
Weight (g) | 13.6 g | 1.70 g |

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

Professional reviewers praise the card for delivering reliable 4K video capture and exceptional durability, but caution that the UHS-I interface limits its top-end performance compared to UHS-II cards.
Everyday users rate the card highly for reliability, capacity, and ruggedness, noting flawless 4K recording and survival in harsh conditions, while some complain about slower-than-advertised transfer speeds and occasional older-model shipments.

“Perfect for my Panasonic Lumix GH5-records 4K video without hiccups.”

“Used it for a month-long safari-survived dust, heat, and rain. No data loss.”

“Advertised 200 MB/s, but my MacBook Pro only reads at 70 MB/s.”



TechRadar praises the card's impressive balance of speed and value, noting the 280/150 MB/s rates are more than sufficient for 4K workflows, while B&H highlights its reliability in extreme conditions as a solid choice for travel and documentary shooters.
Everyday users commend the blazing fast performance, durability in harsh environments, and excellent value, though some note the lack of a bundled reader and wish for higher write speeds.