
Amazon Basics 128GB microSDXC
Score: 58/100
Silicon Power 128GB microSDXC
Score: 82/100Rankings

Silicon Power's 128 GB microSDXC card offers near-premium UHS-I performance with up to 100 MB/s read and 80 MB/s write, rugged durability, and A2 app support, making it a budget-friendly choice for 4K video, gaming, and mobile storage. The inclusion of an SD adapter adds versatility, though some variants have slower write speeds and occasional quality control issues.

The Amazon Basics 128 GB microSDXC offers high-performance U3, A2 and V30 ratings at a budget-friendly price, with rugged IPX6 waterproofing and a full-size SD adapter. It's well suited for action cameras, drones and Android devices, though the lowest-capacity models can suffer slower writes and it isn't compatible with the Nintendo Switch 2.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
100 MB/sbest | 100 MB/sbest | |
60 MB/s | 80 MB/sbest | |
1 years | 5 yearsbest | |
| ↓ lower better | 8.02 gbest | 9 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(1) | ||
Maximum Write Speed (MB/s) | 60 MB/s | 80 MB/s |
Compatibility(1) | ||
Compatible Devices | Smartphones, tablets, DSLRs, action cameras, drones, laptops, gaming consoles (except Nintendo Switch 2), car audio systems | Smartphones, tablets, drones, Android tablets, tablet PCs, action cameras, DSLR, 4K/Full HD camcorder, Nintendo Switch |
Warranty(1) | ||
Warranty Period (years) | 1 years | 5 years |
Physical(1) | ||
Weight (g) | 8.02 g | 9 g |

Products in the top-left offer the best value (high score, low price).

Professional reviewers consistently highlight the Amazon Basics Micro SDXC line as a high-value option that delivers near-premium speeds, solid durability, and A2 app performance, making it especially attractive for budget-conscious 4K video creators and Android power users.
Everyday users praise the card for its reliable performance, genuine capacity, ease of use, and excellent price-to-capacity ratio, often noting flawless 4K recording with GoPro and drones. Recurring complaints focus on slower write speeds on lower capacities, occasional fit issues with small GPS units, and the lack of a protective case.

“Works perfectly with my GoPro and drone”

“Fast and reliable”

“Great value”




Professional reviewers position the Silicon Power 128GB as a cost-effective challenger that delivers near-premium performance. The Superior Pro UHS-I version is praised for its 80 MB/s write speed, making it suitable for 4K video on drones and action cams, while the A2 variant is highlighted for its superior app performance on Android and Nintendo Switch devices.
Everyday users consistently rate the card 4.5+ stars, lauding its fast load times on the Nintendo Switch, rugged build that survives rain and heat, and reliable 4K video capture without dropped frames. The most common complaints revolve around occasional mislabeled units, slower-than-advertised write speeds on some devices, and rare premature failures.