Angelbird 64GB AV Pro MK2 UHS-II SDXC Memory Card

Key Features 64GB Storage Capacity UHS-II / V60 / U3 / Class 10 Sustained Read Speed: 260 MB/s Sustained Write Speed: 140 MB/s Minimum Write Speed: 60 MB/s Records Full HD, 3D, and 4K Video Shock / Dust / Water / Temperature Proof X-Ray & Magnetic Proof Built-In Write Protect Switch Supports Advanced Shooting Modes UHS-II media achieves its speed through an extra row of pins and while this card has been designed for cameras that are UHS-II / V60 compatible, it may be used in devices that do not support UHS-II / V60. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-II and V30, which supports minimum write speeds of 30 MB/s, or UHS-I and U3, which also supports minimum write speeds of 30 MB/s. If your device does not support U3, this card is compatible with the U1 and Class 10 standards, each of which guarantees minimum write speeds of 10 MB/s. Built for extreme conditions, Angelbird's 64GB AV Pro MK2 UHS-II SDXC Memo