Silicon Power 512GB
Score: 100/100
Kingston Canvas React Plus 256GB
Score: 99/100Rankings
A 512 GB microSDXC U3/V30/A2 card delivering up to 170 MB/s read and 150 MB/s write, rugged durability and high-endurance options, suited for 4K video, Android apps and demanding outdoor use.
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.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
170 MB/s | 280 MB/sbest | |
150 MB/sbest | 150 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 0.3 gbest | 1.7 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(2) | ||
Capacity (GB) | 512 GB | 256 GB |
Card Type | microSDXC | SDXC |
Performance(3) | ||
Video Speed Class | V30 | V60 |
Maximum Read Speed (MB/s) | 170 MB/s | 280 MB/s |
Bus Interface | UHS-I | UHS-II |
Physical(1) | ||
Weight (g) | 0.3 g | 1.70 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consider Silicon Power's 512 GB U3 cards reliable mid-tier options that deliver solid 4K video performance and useful A2 app acceleration, highlighting durability, endurance features and a long warranty as key strengths, while noting they don't match the top speeds of SanDisk or Samsung.
Everyday users praise the cards for consistent 4K recording, good durability and the long warranty, especially noting the High Endurance model's reliability in dashcams, but also mention occasional speed variability, confusing model labels and incompatibility with the upcoming Switch 2.
“blazing fast”
“keeps up with the 40MP sensor”
“performs like a $250 card at half the price”
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.
