Kodak ULTRA PERFORMANCE U3 V30 A1 microSDXC UHS-I Flash with A

About the Speed： Read max ：Up to 100MB/s. Write max：Up to 80MB/s for 256GB and 512GB. Up to 40MB/s for 128GB and 64GB. Speed depends on host device, interface, usage conditions and the type of your device. Speed data from Kodak offical website. 【Fast Read-Write Speeds】It comes with up to 100MB/s read speed for fast shooting,ensures smooth video capture.Operating Temperature -20°C to 70°C. 【Flawless 4K UHD Recording】With UHS Speed Class U3 V30 and Speed Class 10,mini memory SD card is ideal for 4K and 1080P Full HD video recording and playback.(Performance results may vary based on host device,file attributes and other factors). 【Stable Quality To Ensure Data Safe】32GB/64GB/128GB/256GB TF memory card is made of high-quality chips,providing reliable performance,making it ideal for write-intensive applications and ensuring clear recording evidence without dropped frames. 【Wide Compatibility For Different Application】Compatible with most of the dash cameras in the market.Ideal for video monitoring cameras,surveillance cameras,smartphones,body cams,drones,tablet etc. 【High Durability For Tough Ambient 】Made of high-quality chips,the KODAK high endurance video mini SD card features water-resistant,anti-magnetic,X-ray radiation-proof,high or low temperature resistant,always keeps data safe. About Capacity： 32GB Approximately 28 GB-30 GB 64GB Approximately 56 GB-60 GB 128GB Approximately115 GB-120 GB 256GB Approximately 230 GB-238 GB 512GB Approximately 480GB-490GB Flash memory vendors are using decimal arithmetic: 1MB = 1000KB, 1G = 1000MB calculated, but the operating system is using binary arithmetic: 1MB = 1024KB, 1GB = 1024MB. So there are some differences between display capacity and nominal capacity of flash memory products.