WESTERN DIGITAL Express microSD Card 256GB - Up to 880MB/s Read Up to 650MB/s Write 210MB/s Sustained Write U3 C10

The SanDisk SDSQXFN-512G-GN4NN is a 512 GB MicroSDXC UHS-I memory card offering high-speed performance for demanding storage tasks. With an 880 MB/s read speed and 650 MB/s write speed, this black MicroSD card supports UHS Speed Class 3 (U3) and A1 application performance, while its rugged design provides drop proof, shock resistant, waterproof, magnet proof and X-ray proof protection.

Advantages

The card combines large 512 GB capacity with UHS-I performance and U3 classification to handle 4K video recording and high-resolution photo bursts. A1 rating improves app responsiveness when used in compatible devices. Physical protections increase reliability in harsh environments, and the compact MicroSDXC form factor fits cameras, drones, action cams and mobile devices.

Suitable for

• 4K video recording and professional video capture
• High-resolution photography and continuous burst shooting
• Use in drones, action cameras and mirrorless cameras
• Expanding storage for smartphones and tablets with MicroSDXC support

Key specifications

• Capacity: 512 GB
• Format: MicroSDXC, UHS-I
• Read speed: up to 880 MB/s
• Write speed: up to 650 MB/s
• Speed class: UHS Speed Class 3 (U3), A1
• Durability: drop proof, shock resistant, waterproof, magnet proof, X-ray proof
• Colour: Black
• Manufacturer part number (MPN): SDSQXFN-512G-GN4NN
• EAN: 619659205447

How to use

Insert the MicroSDXC card into a compatible MicroSD slot or adapter before powering on the device. For reliable performance, format the card in the host device according to the manufacturer's instructions. Use devices that support UHS-I and U3 speeds to fully benefit from the card's read/write capabilities. Avoid removing the card during active data transfers to prevent file corruption.

Recommendations

For sustained 4K recording and high-bitrate video capture, pair the card with cameras or recorders that explicitly support UHS-I U3 speeds. Keep important data backed up to secondary storage and follow device-specific formatting and compatibility guidance.