The ADATA Premier 64GB MicroSDXC memory card (model number: AUSDX64GUICL10A1-RA1) promises speed and durability in a compact package. I’ve been using this card for several weeks in various devices, from my high-end Android smartphone to my action camera, to put its claims to the test. This review will detail my experiences, providing a balanced perspective on its strengths and weaknesses.

The AUSDX64GUICL10A1-RA1 boasts a range of impressive features, including UHS-I Class 10 and V10 speed ratings, promising fast transfer speeds for photos, videos, and apps. The A1 rating indicates suitability for app performance, something I specifically tested. Its rugged build, designed to withstand water, shocks, X-rays, and static electricity, is a significant selling point. The included SD adapter offers compatibility with a wide range of devices.

In real-world testing, the card consistently delivered on its advertised read and write speeds. Transferring large video files (4K footage) from my action camera to my laptop was significantly faster compared to other Class 10 cards I’ve used. App loading times on my smartphone also showed a noticeable improvement, confirming the A1 rating. The card handled sustained 4K video recording without any issues, maintaining a consistent frame rate and preventing dropped frames. However, under sustained intense write operations (like continuous 4K recording over extended periods), I did observe a slight decrease in write speed, although it remained within acceptable limits for the class.

Pros & Cons

• Pros: Fast read/write speeds, A1 rating for app performance, Durable build (waterproof, shockproof, X-ray proof, anti-static), Affordable price for the storage capacity, Included SD adapter.
• Cons: Slight decrease in write speed under sustained heavy load, No significant drawbacks found in standard usage.

Overall, the ADATA Premier 64GB MicroSDXC (AUSDX64GUICL10A1-RA1) is a solid performer offering excellent value for its price. The combination of speed, durability, and features makes it a great choice for users who need reliable storage for their smartphones, tablets, action cameras, or other devices. While there’s a minor drop in write speed under extreme usage, it’s not a deal-breaker for most users. I would highly recommend this memory card.