Its just ok. When youre buying a card at this speed, youre usually using it for high quality photo and video content. Like others have said, it oftentimes does not transfer large files at once. Itll just give me an error message. I use it for a gopro hero 11 and when im trying to transfer files quickly so i can edit on the fly...then i need it to WORK. So sometimes itll work when i directly connect it to my phone, laptops (either through a direct microsd reader or a transfer device). And sometimes it does not. Stick to Sandisk.

Inserted into PC opened and found 462Gb of free space; no files on drive so that's what you get or at least what I got.

I was in the middle of transferring my files from my Nintendo Switch and displayed an error, and now my laptop won't recognize the card. I've tried EVERYTHING to make this work, nothing is happening, there are no device in my house that recognize this card, but they do recognize other cards. I'm extremely dissapointed.

Card works great for my Galaxy S9, and holds my ENTIRE music library so I can play music to any stereo with bluetooth. As my library grows, so does my SD storage, and this PNY 512GB is the next step up from my PNY 256GB card (which also still works great). I had previously bought a Sandisc SD card from Amazon, and it never worked correctly. I've never had any problems with any PNY product ( thats including GPUs for my older PC).

Bought this to use in the microSD slot of my Surface Pro tablet. The built-in memory on my tablet is not that large and this gives me enough room to store all the files I need while travelling. It is fast enough that there is no lag in accessing the files for copying or playing movies. The performance rating is the same as the much higher priced SanDisk cards but at a much lower price. This is a great microSD card to upgrade the storage on your tablet or phone.