So I'm looking to upgrade the ram in my 2011 MBP, however, stores that sell "Apple" ram tend to have noticeably higher prices than other memory. I was wondering: is there actually a difference? Do you *need* ram that's specifically altered to work with Macs in some way? Or will any memory that meets the specs work? Specifically, I was looking at this module, as it's very cheap in a local store: http://www.mushkin.com/Memory/Essentials/991647.aspx I looked at the MBP manual and it said the ram has to meet the following specs: Double Data Rate Small Outline Dual Inline Memory Module (DDR3) format 30 mm (1.18 inches) 204-pin 2GB or 4GB PC3-10600S DDR3 1333 MHz Type RAM The Mushkin ram I found is: Type: DDR3 SODIMM (204-pin) Voltage: 1.5V Speed Spec: PC3-10666 Frequency: 1333MHz So it should work, right? Another question: does anyone have any experience with Mushkin? Is it good ram? Would this ram slow down my system? Thanks in advance!