MicroSDXC rated for EXTENDED Capacity = 128GBV30 VIDEO Speed Rating for 4K UHD video format handlingClass 10 (C10) Speed for FullHD Video Recording + HD Still Image Continuous ShootingU3 UHS (Ultra High Speed) Class for 4K VIDEO capabiltyA2 Application Performance ClassAndroid Mobile device compatible & NINTENDO Switch compatibleX-Ray Proof for travel friendly usageData WRITE Speed up to 40 MB/sData READ Speed up to 90 MB/sMinimum Random Read Speed : 4000 IOPSMinimum Random Write Speed : 2000 IOPSMinimum Sustained Sequential Write Speed : 10 MB/sPre-Formatted with exFAT for universal compatibilityip57 rated Waterproof + Dustproof designmicroSD card to STANDARD-SD card size ADAPTER Accessory includedWide Operating Temperature Range : -25ºC ~ +85ºCSuper wide Storage Temperature Range: -40ºC ~ +85ºCRobust Heavy Duty Construction, able to withstand 15G vibration and 1000G (max) physical shockMicroSD Dimension : 11mm x 15mm x 1m