
Patriot Memory LX Series 128GB 2-pack
Score: 77/100
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 Patriot LX 128 GB 2-pack offers solid read performance and rugged durability at a good price, making it suitable for Full HD video and mobile storage. Write speeds are modest and the warranty is limited, so power users may look elsewhere.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
81.07 MB/s | 100 MB/sbest | |
20.77 MB/s | 80 MB/sbest | |
2 years | 5 yearsbest | |
| ↓ lower better | 0.03 gbest | 9 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(4) | ||
UHS Speed Class | U1 | U3 |
Video Speed Class | V10 | V30 |
Maximum Read Speed (MB/s) | 81.07 MB/s | 100 MB/s |
Maximum Write Speed (MB/s) | 20.77 MB/s | 80 MB/s |
Compatibility(1) | ||
Compatible Devices | microSDXC devices; usable with SD adapter | Smartphones, tablets, drones, Android tablets, tablet PCs, action cameras, DSLR, 4K/Full HD camcorder, Nintendo Switch |
Warranty(1) | ||
Warranty Period (years) | 2 years | 5 years |
Physical(1) | ||
Weight (g) | 0.03 g | 9 g |

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

Reviewers commend the card's impressive sequential read (81 MB/s) and write (20.8 MB/s) numbers and strong random IOPS, while noting inconsistencies in advertised write speeds and the short warranty.
Most users like the fast reads and rugged design, but a few report early failures and confusion over write-speed claims.

“Patriot has always been reliable for me.”

“It's only been 2 weeks and the card is already corrupt.”

“Works perfectly with my Nintendo Switch - loads games fast and no lag.”




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.