Engineered for compatibility with SD devices equipped for capturing Full HD, 3D, and 4K video, as well as facilitating raw and burst photography, the 64GB Extreme PRO UHS-I SDXC Memory Card by SanDisk exhibits a storage capacity of 64GB. Integrated with the UHS-I bus, this card features a speed class rating of V30, ensuring a guaranteed minimum write speed of 30 MB/s. In the absence of V30 support on the device, the card seamlessly aligns itself with the U3 standard, which similarly guarantees a minimum write speed of 30 MB/s. Remarkably, read speeds extend up to 200 MB/s, while write speeds peak at 90 MB/s. The inclusion of a built-in write-protect switch enhances data protection by mitigating the risk of accidental erasure of card contents.SanDisk 64GB Extreme PRO UHS-I SDXC Features:Storage Capacity: 64GBSpeed Ratings: UHS-I / V30 / U3 / Class 10Maximum Read Speed: 200 MB/sMaximum Write Speed: 90 MB/sMinimum Write Speed: 30 MB/sVideo Recording Capabilities: Full HD, 3D, and 4KIntegrated Write-Protect SwitchSanDisk 64GB Extreme PRO UHS-I SDXC Specifications:Quantity: 1Card Type: SDXCStorage Capacity: 64 GBBus Type: UHS-ISpeed Class: 10UHS Speed Class: U3Video Speed Class: V30Maximum Read Speed: 200 MB/sMaximum Write Speed: 90 MB/sMinimum Write Speed: 30 MB/sOperating Temperature: -13 to 185°F / -25 to 85°CStorage Temperature: -40 to 185°F / -40 to 85°CBuilt-in Write-Protect Switch: Yes SanDisk 64GB Extreme PRO UHS-I SDXC Memory Card, 64GB.