Review on Sony M Series SDXC UHS-II Card 128GB V60 CL10 U3 Max Speed 277MB/S Write 150MB/S Black (SF-M128/T2) by John Holliday

Some of my old Samsung SD storage are dying. I wanted to get a Sony SD memory for my Sony A7 cameras. - Excellent reading speed. When I copy my photos from SD card to my computer. It's super fast now. I can easily copy several GB of photos in about a minute. The average write speed is around 120 MB/s, not the advertised 150 MB/s. It doesn't matter, but it would be better if it actually ran at 150MB/s write speed. It captures RAW images faster on my Sony A7III compared to my old Samsung SD. I see very little lag when writing to the SD card. I rarely shoot 4k videos so I'm not sure how it will work with 4k videos. The actual write speed of this card is around 120MB/s, not 150MB/s. I'm not sure why the card advertises 150MB/s, but the spec says 100MB/s. It's a bit inconsistent.