Introduction

The SanDisk Extreme microSD UHS-I card (model number SDSQXAV-1T00-GN6MN) promises blistering speeds for recording 4K video and capturing high-resolution photos. This 1TB behemoth aims to be the go-to storage solution for action cameras, drones, and smartphones demanding high-capacity and fast write speeds. I’ve spent several weeks rigorously testing this card under various conditions, from recording extended 4K footage to transferring gigabytes of data. This review will provide a comprehensive look at its real-world performance.

Key Features

The SanDisk Extreme microSD boasts several key features designed to enhance its performance and durability. The advertised SanDisk QuickFlow Technology is intended to streamline the transfer of large files. Beyond speed, it’s also marketed as shockproof, temperature-proof, and waterproof, promising resilience against the elements and accidental damage. The lifetime warranty provides added peace of mind for a long-term investment.

Performance Review

Testing the SanDisk Extreme microSD involved recording 4K video on my action camera for extended periods, shooting bursts of high-resolution photos, and transferring large files to my computer. While the advertised read speed of 200 MB/s and write speed of 140 MB/s weren’t consistently achieved in real-world testing, the card’s performance was still impressive. I noticed minimal lag during 4K video recording, even in demanding conditions. Transfer speeds were consistently fast, significantly reducing the time it took to offload footage and photos. The card handled large 4K video files with remarkable efficiency. While the numbers may not always perfectly align with the advertised specifications, the overall speed increase compared to older cards was undeniable.

I also conducted several file transfer tests using a variety of file types and sizes. While the sustained write speeds were slightly lower than advertised, the card still performed significantly better than comparable cards of its class. There was occasional slight buffering during 4K 60fps recordings, which is to be expected with demanding high-bitrate video formats, but overall it remained reliable and consistent.

Pros & Cons

Pros:

• High storage capacity (1TB)
• Fast read and write speeds for its class
• Reliable performance during 4K video recording
• Shockproof, temperature-proof, and waterproof
• Lifetime warranty

Cons:

• Real-world speeds slightly lower than advertised
• Occasional minor buffering during high-bitrate 4K recording
• Premium price point

Final Verdict

The SanDisk Extreme microSD SDSQXAV-1T00-GN6MN delivers impressive speed and a substantial 1TB capacity, making it a strong contender for demanding applications. Despite minor discrepancies between advertised and real-world speeds, its overall performance surpasses many competitors. If you need reliable storage for capturing high-quality 4K footage and transferring large files quickly, this card is a worthwhile investment, although the price reflects its premium features and capabilities. I would wholeheartedly recommend it for professionals and enthusiasts alike who prioritize performance and durability.