Here is the guide for you to get the top-recommended & fastest SD memory cards for Sony RX10 IV camera.
The Sony Cyber-shot DSC-RX10 IV has a single SD card slot that supports UHS-I SD cards. That means you can’t get any extra write speed benefit from the UHS-II cards although they can be used in the Sony RX10 IV in UHS-I mode at the fastest write speeds of the UHS-I cards. So, for the Sony RX10 IV users, the best choice is to get a fast and reliable UHS-I SD card (U3 capable), and you don’t need to pay extra money for the UHS-II cards unless you require fast transfer speeds (read speeds) from your card to your computer.
Below are the best SD memory cards for Sony RX10 IV camera based on speed and price. And our favorite UHS-I SD card for Sony RX10 IV is the SanDisk Extreme Pro UHS-I card 170 MB/s (V30, U3).