
Extremely disappointed with this RAM. I had intermittent issues with my mid 2012 Macbook Pro for 12 months and found that the memory I bought 18 months ago had failed. The problems started small as the Mac crashed maybe once a week. Ever since I upgraded to High Sierra I assumed these were issues with the new IOS. The crashing and freezing issue became more problematic over time and I've tried everything from uninstalling apps to downgrading IOS. Nothing seemed to work. I recently discovered that the A-Tech 16GB memory modules failed and crashed the system all the time. My product is no longer under warranty, so I don't see a way to get a refund or replacement. I recommend that if you are looking to upgrade, go for a better brand like Crucial Memory. Don't waste your time and money with this product.

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