PNY - Pro Elite 512GB MicroSDXC U3 Flash Memory Card

Yes. A system update will be required. See picture.

I am using this in a Samsung S10+. You would need to check that your phone is formatted for a card of that size.

No. I have the exact same dash cam, and the camera tells me that it is fake, insert a different card… even after letting the camera format the card.

So far... I have 21K pictures, and 100 videos on my 512GB SD Card... and only have used 42.2GB... Love this Card... Would have bought 3 more.... but only 1 was in stock! Very happy with my purchase...

Yes, it will work as long as you have a SD card reader that is compatible with this SD Card. Make sure you get a SD Card reader that will insert into one of the ports on your Macbook. Then make sure that SD card reader will read MicroSDXC Memory Cards. I am almost positive without much research you can rest assured it will work as long as you have the appropriate SD Card reader. You may need to format the SD card to a special file system that macs use but that all can be done once you have the card in your Mac.