OWC 4GB PC8500 DDR3 1066MHz SO-DIMM Memory Compatible with Early 2009, Early 2010 MacBook, MacBook Pro Unibody Models, 2009/2010 Mac Mini, and 2009 iMac Models at Amazon.com
Ccdes RGB RAM,RAM Stick,DDR3L RAM 2/4GB 1600MHz 204Pin Low Fever Stable Compatible Memory Card for Store Exchange Data - Walmart.com
Crucial 4GB DDR3-1066 SODIMM Memory for Mac - CT4G3S1067M" - Walmart.com