I've had 5 Samsung 850s and love them, never had a problem, and I know this experience is pretty rare. This drive though didn't even make it 6 days before the read/write failures filled up the win event log. The constant need to retry reads/writes made it impossible to even get the data off the disk once failure was observed.
I'm not saying you should avoid this product; I believe in Samsung SSD drives. This particular drive failed though. Take that for what it's worth.
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