TwinMOS 128GB MicroSDXC UHS-I U3 Class 10 V30 Memory Card with SD Adapter

This TwinMOS 128GB MicroSDXC card is removable storage for phones, tablets, dash cams and action cameras — the class of card meant to keep writing video steadily rather than simply hold files. It is rated Class 10, UHS-I U3 and Video Speed Class V30, reading at up to 100MB/s and writing at up to 30MB/s. The U3 and V30 ratings are the ones that matter for recording, because they describe sustained write performance, and that is what keeps 4K footage from dropping frames on a camera that never stops rolling. A full-size SD adapter is included, so the same card drops straight into a camera body or a laptop SD slot without a separate reader. It suits a phone running short of room for photos and video, a dash cam looping footage through a full day of Dhaka traffic, or an action camera taken out at weekends, and the adapter makes it equally at home in a DSLR or mirrorless body. Formatting it in the device that will use it, rather than on a computer, keeps performance consistent over the long run. It is covered by a five year manufacturer warranty.