OWC 12GB (3 x 4GB) PC8500 DDR3 ECC 1066MHz DIMMs Memory Compatible with Mac Pro & Xserve 'Nehalem' & 'Westmere' Models (OWC85MP3W4M12GK) at Amazon.com
OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com