Speed Performance Comparison
The SanDisk Extreme Pro SDXC UHS-II delivers dramatically faster read/write speeds compared to the Class 4 microSDXC. UHS-II technology provides up to 300MB/s read speeds, while Class 4 is limited to just 4MB/s minimum write speeds. This makes the Extreme Pro ideal for 4K video recording, burst photography, and rapid file transfers.
Storage Capacity and Value
The Extreme Pro offers 128GB of storage versus just 32GB on the microSDXC - four times more capacity for $22 less. At $1.81 per GB compared to $7.94 per GB for the microSDXC, the Extreme Pro delivers exceptional value. The larger capacity means fewer card swaps and more room for high-resolution photos and videos.
Form Factor and Compatibility
The microSDXC's compact size makes it perfect for smartphones, action cameras, and drones where space is critical. However, the full-size SDXC format of the Extreme Pro works directly in most cameras and laptops without adapters. Both cards are from trusted SanDisk with reliable performance, but serve different device ecosystems.
