Samsung MB-SD128SB/WW memory card 128 GB SDXC UHS-I

The Samsung 128GB SDXC UHS-I MB-SD128SB/WW is a high-capacity SD memory card designed for devices that require fast sequential transfer and reliable storage. With 128 GB capacity and SDXC format, the card supports large photo libraries, high-bitrate video files and rapid file transfers. It offers read speeds up to 180 MB/s and sustained write speeds up to 130 MB/s, and is rated UHS Speed Class 3 (U3) and Video Speed Class V30 for consistent 4K video capture and quick offloading of content. The card comes in a white finish that fits consumer and professional devices requiring SDXC compatibility.

Advantages

The memory card combines high capacity with UHS-I performance to provide fast access to stored files and efficient data workflow. Read speeds up to 180 MB/s enable accelerated transfer to computers or card readers, while write speeds up to 130 MB/s support continuous burst shooting and stable 4K recording. U3 and V30 ratings ensure compatibility with modern cameras and camcorders that demand guaranteed sustained speeds. The compact SDXC form factor maintains compatibility with devices that accept full-size SD cards.

Suitable for

• 4K and Full HD video recording in DSLR, mirrorless and action cameras
• High-resolution burst photography and continuous shooting
• Storage expansion for laptops, tablets and portable devices with SDXC slots
• Fast backup and transfer of large media libraries

Key specifications

• Capacity: 128 GB
• Form factor: SDXC (full-size SD card)
• Interface: UHS-I
• Maximum read speed: up to 180 MB/s
• Maximum write speed: up to 130 MB/s
• Speed classes: UHS Speed Class 3 (U3), Video Speed Class V30
• Colour: White
• Weight: 0.0018 kg

How to use

Insert the Samsung SDXC card into a compatible device’s full-size SD slot until it clicks into place, or use a compatible SD card reader for connection to a computer. Format the card in the camera or device before first use to ensure optimal performance and file system compatibility. During recording or file transfer, avoid removing the card until the device indicates the operation is complete. Use the device’s menu to select the card as the primary storage location if required.

Recommendations

For reliable 4K video recording and high-speed burst photography, use this card in cameras or recorders that explicitly support UHS-I U3/V30 media. Regularly back up important data to another storage medium and format the card in the host device periodically to maintain consistent performance.