Review on 💾 Sony M Series SDXC UHS-II Card 256GB: High-Speed V60 Class, CL10, U3, R277MB/S, W150MB/S by Jason Lockwood

. They worked perfectly until they broke. After 4 months my camera was having occasional "card reading errors" and was completely stuck requiring me to turn off the camera completely, remove the SD card and replace it with a Sandisk card. I bought these cards for both the brand and the price, as they are significantly cheaper than the Sandisk reviewed at the time. But looking back, I'd recommend just paying for Sandisk. There is nothing worse than SD card failure at critical moments. Limited warranty options are currently being evaluated. Sony's TOUGH series may be better, but this version of the SF-M256 just doesn't fall short when it comes to reliability.