I have heard lots of discussion here recently about how the 2011 MacBook Pro will support 8GB RAM @ 1600MHz. Now, I am interested in purchasing an 8GB kit for my new 2011 MBP. From my readings on this forum I understand that model #1: KHX1600C9S3K2/8G has been confirm to run at 1600MHz on the 2011 MBP. Unfortunately newegg.com is "out of stock" on this item. They do however, have another 1600MHz kit model #2: KHX1600C9S3P1K2/8G which is "in stock." I was wondering if anyone knows of any differences they have compared to each other, if any. Can anyone confirm that model #2 will work on the current 2011 MBP at 1600MHz. Thank you for any and all help!