512GB Micro SD Memory Cards, SD Card，UHD Video for GoPro，4K Camera Pro， Action Camera，Smartphone，MicroSDXC Memory Card UHS-I U3 A1 V30

Failed after 3 days. Suddenly died. Now it cannot be recognised as an SD card and it cannot be formatted. Buying this was a bad decision. The price looked low for a card with these claimed specifications but in reality the expectations did not match the reality. I noticed that the original sealed manufacturers blister pack was opened and had been sealed with a little sticker.I have returned it now and I will buy a recognisable brand instead. Like the reviewer further down the page, I have looked up the original Amazon page for this item and noted that the average review was between 2 and 3 stars.I note that the 5 star reviews for this item on the current page all refer to birthday cards, wrapping paper, lipstick etc. These reviews are NOT for this item. There is some sort of scam going on here.

After 4 days it suddenly stopped from car dashcamera and later found its not working anymore.

This was to hold 170gb of music files in thecar but after writing some Windows gave an error and the written files were corrupt.Tried a reformat but again Windows spat it back out.This kind of junk just wastes everybody's time, energy and valuable earth resources.

Put this into my Samsung tab....its working fine....nice big storage...I'm happy with it 👍

The card has failed and I has lost all my very important files .. not happy with thismits only 5 months old

Never heard of this make, but up to now no issues. Loads of storage for video, pictures and music.

Good quality

Bought this to expand my phone memory. Literally in 3 days it stopped working. Tried loading it on my laptop hoping to reformat it but even my laptop could not pick it up.Useless product. You are better off spending a bit more and purchase a reputable brand......lesson learned!