Sony M Series SDXC UHS-II Card 64GB, V60, CL10, U3, Max R277MB/S, W150MB/S (SF-M64/T2), Black

Its a good and quality product, thanks Sony! /Before that I was using these ones: SanDisk 64GB Extreme PRO SDXC UHS-I Memory Card (SDSDXXG-064G-GN4IN) ---- NEVER BUY THEM!!!!! THEY ARE MADE OF VERY CHEAP PLASTIC!!! ONE RUINED MY Sony A7rII SD- card slot!!!. /. This Sony card is very good! Highly recommended!!!

Great product very fast transfer speeds

Super fast cards. Fast shipping

Works as advertised, great product, would buy again.

This card is rated for 150 MB/s write and 277 MB/s reads. It met the write speed on the dot and the read speeds are pretty close.

Worked as expected! Cant wait for these things to go down in price!

Good

Super fast and reliable. I love it!

Super fast card with a UHS-II reader. I bought two and use them in my Canon camera. They work at normal speeds in devices that are not UHS-II.

You really have no choice if you are using the Z7. This Memory Card works perfectly, is well made, fast and easy to handle. It takes a special USB reader to connect to your computer. So the entire package is a bit expensive. But considering the investment in camera equipment and the value of getting the shot, its really not that big of an expense.