
Silicon Power 512GB
Score: 100/100
Lexar Blue 1TB microSD
Score: 85/100Rankings

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 1TB Blue microSDXC offers massive storage, solid read performance and strong durability, making it ideal for gamers and 4K content creators. Its UHS-I interface and modest 30 MB/s write speed keep it from high-end professional video work.
| Attribute | ![]() | ![]() |
|---|---|---|
512 GB | 1,000 GBbest | |
170 MB/sbest | 160 MB/s | |
150 MB/sbest | 30 MB/s | |
5 years | 10 yearsbest | |
| ↓ lower better | 0.3 g | 0.25 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage & Capacity(1) | ||
Capacity (GB) | 512 GB | 1000 GB |
Performance(3) | ||
Maximum Read Speed (MB/s) | 170 MB/s | 160 MB/s |
Maximum Write Speed (MB/s) | 150 MB/s | 30 MB/s |
Bus Interface | UHS-I | microSDXC |
Warranty(1) | ||
Warranty Period (years) | 5 years | 10 years |
Physical(1) | ||
Weight (g) | 0.3 g | 0.25 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.

“a game-changer for storing games on the Nintendo Switch”

“smooth 4K video recording on drones and action cameras like GoPro”

“actual write speeds are closer to 25-30 MB/s”




Professional reviewers view the Lexar Blue 1TB as a strong mid-tier option, praising its A2 rating, rugged durability and 10-year warranty, but note the UHS-I interface and limited write speed restrict high-bitrate video use.
Everyday users love the capacity and durability, especially for Nintendo Switch and drones, but complain about slower write speeds and occasional incompatibility with non-Lexar readers.