Amazon Basics 256GB Micro SDXC
Score: 85/100
SanDisk Extreme PRO 256GB
Score: 100/100Rankings
The SanDisk 256 GB Extreme PRO SDXC UHS-I offers top-tier read/write performance (200 / 140 MB/s) and rugged protection, making it a strong choice for 4K creators. Its UHS-I bus limits it on cameras that can exploit UHS-II bandwidth, and some users report speed variance with cheaper readers.
The Amazon Basics 256 GB microSDXC offers solid 100 MB/s read performance, A2 app class, and a full-size adapter in a rugged, waterproof package, making it a budget-friendly choice for 4K video and mobile storage. Its durability features and broad device compatibility add to its appeal, though write speeds are modest and warranty coverage is limited.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
100 MB/s | 200 MB/sbest | |
90 MB/s | 140 MB/sbest | |
| ↓ lower better | 0.9 gbest | 2 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(1) | ||
Card Type | microSDXC | SDXC |
Performance(2) | ||
Maximum Read Speed (MB/s) | 100 MB/s | 200 MB/s |
Maximum Write Speed (MB/s) | 90 MB/s | 140 MB/s |
Compatibility(1) | ||
Compatible Devices | Smartphones, tablets, DSLRs, action cameras, drones, laptops, game consoles (except Nintendo Switch 2), car audio systems | DSLRs, mirrorless cameras, camcorders, laptops |
Physical(1) | ||
Weight (g) | 0.9 g | 2.0 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers from Manuals+.net, BensBargains and ImproveTheWorld.net praise the card for its high-speed transfer rates, reliable 4K video support and A2 app performance, noting it as a great deal and a top-selling Amazon Choice.
Everyday users consistently commend the card for delivering the advertised capacity, fast and dependable performance in cameras and drones, and exceptional price per gigabyte.
“True 128GB capacity”
“Fast and reliable”
“Great for cameras”
Professional reviewers praise the blend of high read/write speeds, V30/U3 ratings and rugged build, recommending it for 4K creators while noting UHS-I is slower than UHS-II cards.
Everyday users highlight reliable performance, fast transfers and durability, but note occasional slower-than-advertised speeds and occasional shipping delays.
