These Premium High Speed Micro SDXC cards from Integral offer superior, super-fast read and write speeds - ensuring that you can record high-definition video and take burst mode photos with confidence. Product Features - Ideal for use in compatible smartphones, tablets, digital cameras, action cams, drones and game consoles - Fast read and write ensures smooth video capture even when shooting at 4K and Full HD. No lag or dropped frames - Ultra-fast read / write, with up to 100 MB/s* read and 50 MB/s* write - Video Speed Class 30 (V30) - A1 App Performance Specification - high IOPS ensures best performance - UHS-I, Class 3 specification - 5 year warranty in compatible smartphones and tablets Specifications Product Type Flash memory card Form Factor microSDXC UHS-I Memory Card Storage Capacity 256 GB Speed Rating A1 / Video Class V30 / UHS Class 3 / Class10 Enclosure Colour Black Included Memory Adapter microSDXC to SD adapter Height 11 mm Thickness 1 mm Weight 0.5 g Width 15 mm Max Operating Temperature 70 °C Min Operating Temperature -25 °C Read Rate Up to 100 MB/s Speed Class A1 / Video Class V30 / UHS Class 3 / Class10 Write Rate Up to 50 MB/s