Silicon Power 512GB
Score: 100/100
Lexar E-Series 256GB
Score: 53/100Rankings
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 Lexar E-Series 256 GB microSDXC card offers solid read performance and rugged durability for everyday mobile use, but its modest 30 MB/s write speed limits 4K video capture. It includes an SD adapter and a long-term warranty, making it a reliable choice for smartphones and tablets.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
170 MB/sbest | 100 MB/s | |
150 MB/sbest | 30 MB/s | |
5 years | 10 yearsbest | |
| ↓ lower better | 0.3 g | 0.2 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 | 100 MB/s |
Maximum Write Speed (MB/s) | 150 MB/s | 30 MB/s |
Application Performance Class | A2 | A1 |
Warranty(1) | ||
Warranty Period (years) | 5 years | 10 years |
Physical(1) | ||
Weight (g) | 0.3 g | 0.20 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.
Professional reviewers praise the Lexar Professional 1000x UHS-II for its V60 rating and sustained write speeds, but note that the E-Series write speed is limited to 30 MB/s and can be inconsistent on older devices.
Everyday users commend the card for reliable long-term performance, fast file transfers, and rugged durability, though some complain about inconsistent write speeds and the discontinued status of the E-Series.
“Users report long-term use without corruption or failure.”
“Fast transfer of large video files, especially with UHS-II and Silver Series cards.”
“Some users report write speeds below advertised levels, especially in non-UHS-II devices.”
