The Silicon Power 512GB Superior microSDXC UHS-I 4K Ultra HD card (P/N: SP512GBSTXDV3V20SP) is designed for mobile devices, digital cameras, drones, and portable game consoles that require high-speed, reliable storage, especially for demanding tasks like 4K Ultra HD video recording.

Key Features and Performance

• Capacity and Class Ratings: It is a 512GB capacity microSDXC card with a UHS-I bus type. It meets UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) standards, which guarantee a minimum sustained write speed of 30 MB/s to ensure seamless, uninterrupted 4K Ultra HD video capture. It is also Class 10 rated.

• Speed: The card offers fast sequential transfer speeds, with a maximum read speed of up to $100\text{ MB/s}$ and a maximum write speed of up to $80\text{ MB/s}$. This allows for quick transfer of large files, such as high-resolution images and videos.

• App Performance: The card is rated Application Performance Class 1 (A1), meaning it's optimized for faster app launching and smoother operation on Android-based smartphones and tablets. The A1 rating includes specific minimum random read (1,500 IOPS) and random write (500 IOPS) performance metrics.

Durability and Reliability

This card is engineered for use in extreme environments and is built to be waterproof, shockproof, temperature-proof (operating from 0∘C to 70∘C and storage from −40∘C to 85∘C), and X-ray-proof. It also includes an automatic Error Correction Code (ECC) function to ensure data integrity.

The card is often bundled with a full-size SD adapter for broader compatibility across different devices.