Silicon Power 512GB
Score: 100/100
Kingston Canvas Select Plus 256GB SDCS3
Score: 100/100Rankings
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 Select Plus 256 GB delivers high capacity and fast 150 MB/s read/write performance with V30 video support, making it suitable for Android devices and 4K recording while retaining rugged durability and a lifetime warranty.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
170 MB/sbest | 150 MB/s | |
150 MB/sbest | 150 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 0.3 g | 0.23 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(1) | ||
Capacity (GB) | 512 GB | 256 GB |
Performance(3) | ||
Maximum Read Speed (MB/s) | 170 MB/s | 150 MB/s |
Bus Interface | UHS-I | UHS‑I |
Application Performance Class | A2 | A1 |
Physical(1) | ||
Weight (g) | 0.3 g | 0.23 g |
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.
Professional reviewers note that the Canvas Select Plus (especially the SDCS3 version) delivers a solid 150 MB/s read/write performance, A1 app class and V30 video class, making it a reliable choice for Android devices and 4K recording. They commend its durability and lifetime warranty, but point out the lack of an A2 rating and the lingering presence of the slower SDCS2 variant, which can confuse consumers.
Everyday users appreciate the card's reliability, fast app loading, and rugged build, often highlighting its value for money and plug-and-play convenience. Recurring complaints focus on receiving the slower SDCS2 version when expecting higher speeds and occasional 4K video hiccups, as well as unclear packaging that doesn't distinguish the two models.
“Reliability: Users report long-term use without corruption or failure”
“Apps load quickly; multitasking is smooth”
