From Manufacturer
Designed for on-the-go users who want to film life's adventures in Full HD 1080p or 4K using a DSLR or drone, the 128GB Canvas Go! UHS-I SDXC Memory Card from Kingston features a storage capacity of 128GB and takes advantage of the UHS-I bus to support read speeds of up to 90 MB/s and write speeds of up to 45 MB/s. This Canvas Go! card supports the V30 speed class, which guarantees minimum write speeds of 30 MB/s. If your device does not support the V30 speed class, this card also supports the U3 speed class, which likewise guarantees minimum write speeds of 30 MB/s. If your device only supports the Class 10 standard, minimum write speeds are guaranteed not to drop below 10 MB/s.
Built and tested to withstand harsh environments, Kingston's 128GB Canvas Go! UHS-I SDXC Memory Card is protected against water, shock, vibration, x-rays, and temperature extremes. A built-in write protect switch helps to safeguard your content from being erased.