Very disappointed, product was working fine for a couple months as extra storage in my phone, and then all of a sudden out of nowhere it appears to be damaged and is not compatible with my phone any more. On top of this I have lost over 30gb of data (pictures, music, etc..) and cannot replace it!
I bought this memory card and only transfer data on to it once. The second time I tried to transfer data to the memory card it would not save the data. I have tried formating numerous times. The card is faulty. I would expect that when I spend £42 for a memory card it should at least last more than 6 months. I will not be purchasing any more SanDisk products again. I feel very disappointed and let down. I would like to request a replacement or a refund preferably a refund because I have little confidence in the product.
Bought this a while ago to go in a camera for an upcoming holiday. However when I tried to format it the day before we left I realised the card was cracked and doesn't work. As it has now been over 30 days since I purchased it, I can not find a way to order a replacement or even get a refund. Very disappointed.
Firstly very well done to Amazon for delivering this (and another item) in 48hours when they estimated delivery in a week or so. Also very well done to them for their rapid no-quibble returns policy and the rapid refund that was initiated within an hour of me dropping this back off at the local Post Office for return.
So i bought the Sandisk Ultra 256GB Class10 A1 Micro SD card. The packaging looked legitimate so i opened it and tried it in a computer to see what i had received. I bought this card to record video to (in a 4K drone) so speed was imperative, however this is where it immediately fell over. The advert and packaging both claimed "Speed up to 100MB/s 667X" which should have easily been fast enough. Now i understand what "up to" in these descriptions means, but if you're going to claim "100MB/s" then you expect something vaguely in that ballpark. Honestly, if it had come in at 50MB/s then i'd have lived with that.
Unfortunately as soon as i tried to copy data to it, it became clear very quickly that this was not the case. I was getting about 5-9MB/s, though this was probably much slower because it just kept stalling with periods of many seconds at a time where it simply paused. I tried to copy about 3GBs of data to it and it claimed it was going to take a few hours. Honestly, this is a 256GB card, it would have taken days (potential more than 10 of them at a solid 24Hrs/day) to fill it.
I reformatted it, tried it in a different SD card adapter, tried it in a USB-C card reader that could natively handle MicroSD, and also checked all these intermediaries out with an older Sandisk card that i had just to check them. The various readers/adapters i used with my old card rand at the high speed i was expecting, but with this card they all struggled.
Whenever i buy a memory card i always try to fill it up solidly to check it's reporting a legitimate capacity. I was never going to achieve that with this one.
Within an hour of receiving it i'd wrapped it back up and initiated the Amazon returns process.
I should also add that on inspection afterwards, the quality of the printing and ink on the card makes me highly suspicious. It seemed quite poor quality compared to other Sandisk MicroSD cards i have, and it was also a very tight fit in the adapter that came with it. The whole thing just didn't feel right.
I would like to give this product zero starts but Amazon doesn't allow it.
Great storage, came nice and quickly with a good protective case. I recently bought another Micro SD card from another company but it was damaged and took ages to be delivered, so I had to get a refund. I then bought a SanDisk and it works perfectly without any effort. Works Great with my Samsung Galaxy S7 Edge.
I purchased the product, inserted in my phone trying to copy my pics on, but my phone did not recognise the card. So I took it out, using the adapter inserted in the card reader slot of my Mac and wanted to format it. My Mac did not see the card. Then I tried my PC at work, wanting to format it as I thought that was the problem but the card was not recognised - and then I noticed that the card was ever so slightly bent, therefore corrupted and unreadable. So there you go 15 quid wasted.