Amazon Basics 256GB Micro SDXC
Score: 85/100
SanDisk Extreme PRO 128GB
Score: 80/100Rankings
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.
The SanDisk 128 GB Extreme PRO SDXC delivers fast 200 MB/s reads and 90 MB/s writes, making it ideal for 4K video and burst photography. Its rugged, waterproof and shock-proof build plus a lifetime warranty suit field work, though the UHS-I interface limits 8K performance.
| Attribute | | |
|---|---|---|
256 GBbest | 128 GB | |
100 MB/s | 200 MB/sbest | |
90 MB/sbest | 90 MB/sbest | |
| ↓ lower better | 0.9 gbest | 4.5 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(2) | ||
Capacity (GB) | 256 GB | 128 GB |
Card Type | microSDXC | SDXC |
Performance(1) | ||
Maximum Read Speed (MB/s) | 100 MB/s | 200 MB/s |
Physical(1) | ||
Weight (g) | 0.9 g | 4.5 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 commend the balanced speed and rugged build, but note the UHS-I bus and 90 MB/s write ceiling make it unsuitable for 8K or high-bitrate action video.
Everyday users highlight fast transfers, large capacity and field-ready durability, while complaining about exaggerated write-speed claims and limited legacy camera support.
