Newegg.com also sales 8GB sticks of RAM in pairs or singles. They are the best price by far state side at $229.00 USD for a single 8GB stick. Many of us have had success running these in various configurations from 16GB in 2011 MBP & 2011 Minis to 32GB in 2010 iMac.
If you get it from the USA, you have to pay VAT, so I don't see any benefit. 16 GB costs 420 Euro on eBay and that's okay I guess. I will get 8 GB in the near future, which costs about 50 Euro 😀
I currently have 8GB Ram in my 2011 mini i5, bought from crucial : 2 of these. Does anyone know if this would be a good module to get to upgrade to 12GB?
The only difference I can see is 1.35V on the 8GB as opposed to 1.5V on the 4GB.