128GB microSDXC メモリーカード U3

The item you're referring to is the SoftBank SELECTION 128GB microSDXC memory card, which is classified as a U3 card. Here’s a bit more information about it:
- **Storage Capacity**: 128GB, providing ample space for storing photos, videos, apps, and other data.
- **U3 Speed Class**: This rating ensures a minimum write speed of 30 MB/s, making it suitable for recording 4K video and high-resolution images without lag.
- **MicroSDXC Format**: This means it's compatible with devices that support the microSDXC interface, which can handle larger capacities than standard microSD cards.
Always ensure that the microSD card is compatible with your devices and check for any additional features, such as water, temperature, or shock resistance, if those are important for your use case.