I'd NEVER touch these 64gb ultras. You might get the old stock - just Google the problems (I had one and was shocked that a company like this could send out so many units that failed). Latest on they sorted the "write only" faults but not worth the risk in my opinion.

I'd sooner have a Samsung for £2 extra for Evo, or £3 extra for the Evo+

Been using one of these in my Surface pro 3 for a couple of years now, been flawless

Cheers OP, just what I needed for my latest tech purchase (ASUS C100P)
I've got 3 x Sandisk Ultra SD cards, all been perfect with no problems. Heated up.

I have also had 2 of these fail in android devices. Not worth the hassle.

Currently using this in my Sony Xperia Z3, never any problems

I had one in my Note 4 for the past 8 months and no issues at all. Still using it.

So will this be ok for my dashcam? Thanks.

been using sandisk card for ages . till using two 64 GB cards , one 64gb extereme U3 in samsung galaxy s5 and ultra 64gb u1 in samsung tabs for about 2 years .jo problem so ever.heat added

i had two of these and both failed

i purchased 2 of these from a argos deal at £10 each early this year. these were a bit of a nightmare to format. I found out after that the format and file transfer only works with my SanDisk card reader and non of my generic :wink: ones. if I hadn't got and SanDisk reader I would have thought they were faulty. no problems when worked that out.

I've always wondered why if micro cards are so cheap, why is on board storage on smart phone so pricey. Looking at you Apple. Be good if you install a couple as raid disk storage

Just bought one of these 64GB Sandisks a few days ago. Are they all duff or just some?

Weren't these 9.99 in Argos a while back? Thought price of memory was dropping all the time, wait for a better deal

"Wise up"?