OWC OWC5300DDR2S6GP memory module 6 GB 2+4 GB DDR2

6.0GB (2GB + 4GB Module Set) Upgrade kit for MacBook(Late 2007, Early/Late 2008, Early 2009), MacBook Pro 15" & 17" (Mid 2007, Early/Late 2008), and iMac (Mid 2007) systems with Core 2 Duo Santa Rosa or Penryn processor.