Good value postage at $4 although it took about two an a half weeks to get to Strasbourg in France from the States, however arriving in perfect shape.
Don't forget to check out the great OWC film clip on how to insert these in pairs - I made a big mistake and the RAM value went down from 4.5GB to 2GB! This didn't break the OWC memory.
Now it's showing 6GB as it should and working fine.