oshiba's High Speed Professional microSD cards add extra memory to mobile devices and offer faster loading and smoother video recording. With up to 40MB/s the range will also give you faster app loading and smoother video recording. Class 10, 8GB The Toshiba microSD cards has the dimensions of 15 mm (L) x 11 mm (W) x 1.0 mm (H) and can be therefore built-in in your device without any problems. Best Compatibility with Adapter The Toshiba High Speed Professional microSD card series includes a convenient SD card adapter. This allows you to capture and access data on the card with any device with an SD card slot – in your camera, camcorder, tablet or laptop.