Samsung MB-MY128S 128 GB MicroSDXC UHS-I

The Samsung MB-MY128S is a 128GB MicroSDXC card with UHS-I interface designed for devices that require high-capacity removable storage. It delivers up to 200 MB/s sequential read speed and up to 130 MB/s sequential write speed, and conforms to UHS Speed Class 3 (U3) and Video Speed Class V30 standards. The card is built to resist everyday hazards — it is drop proof, magnet proof, temperature proof, waterproof and X-ray proof — and comes in a blue color.

Advantages

The MicroSDXC Samsung 128GB UHS-I MB-MY128S combines high-capacity storage with fast sequential transfer rates suitable for high-resolution capture and quick file transfers. U3 and V30 ratings ensure sustained write performance for video recording. Ruggedized construction provides increased data safety in a range of environmental conditions, while the compact MicroSDXC form factor maintains compatibility with many smartphones, tablets, action cameras and other devices when used with an adapter.

Suitable for

• Recording 4K and Full HD video with action cameras and drones
• Storing large photo libraries and RAW image files
• Expanding smartphone and tablet storage for apps and media
• Transferring large files between devices and computers

Key specifications

• Brand: Samsung
• Model: MB-MY128SA/WW (MPN)
• EAN: 8806094957174
• Capacity: 128 GB
• Flash card type: MicroSDXC
• Interface: UHS-I
• Read speed: up to 200 MB/s
• Write speed: up to 130 MB/s
• Speed class: UHS Speed Class 3 (U3), Video Speed Class V30
• Product colour: Blue
• Weight: 0.025 kg
• Durability: drop proof, magnet proof, temperature proof, waterproof, X-ray proof

How to use

Insert the MicroSDXC card into a compatible MicroSD slot in your device or into a MicroSD-to-SD adapter if required by the host. Format the card in the device before first use following the device manufacturer’s instructions to ensure optimal file system compatibility. Use the device’s file manager or a computer to copy, move or delete files. When transferring large files, connect via a compatible card reader or use the device’s USB/data connection for the best throughput. Always use the operating system’s eject or unmount function before removing the card to avoid data corruption.

Recommendations

For reliable video recording, choose this card for devices that support UHS-I and V30 performance. Regularly back up important data to another storage medium. If using the card in extreme temperatures or wet environments, allow it to return to room temperature before significant file operations. Replace the card if you observe read/write errors or consistent performance degradation.