UHS-II SD Card Reader,UP to 500M/S USB 3.0 Type-C Flash Memory Card Reader for USB C Device, SD/SDHC/SDXC/Micro SDXC/SD4.0/V90/V60/V30/1667X/2000X/1000X Memory Card and Professional Card - Grey - Walmart.com
What is the V30/V60/V90 video speed class? | Lexar
UHS-II SD Card Reader,Type-C Flash Memory Card Reader for USB C Device, SD/SDHC/SDXC/Micro SDXC/SD4.0/V90/V60/V30/1667X/2000X/1000X Memory Card and Professional Card - Grey : Amazon.sg: Electronics
Does it matter if you use a V60 or V90 SD card for shooting a 4K video? - Quora