Kingston Technology ValueRAM 8GB Kit (2x4GB) DDR3 1333 MHz DIMM Desktop Server Memory KVR1333D3E9SK2/8G at Amazon.com
2GB 1333MHz DDR3 SO-DIMM PC3-10600 204Pin SO-DIMM CL9 Memory RAM Upgrade Module for iMac, Mac Mini, MacBook Pro and PC Laptops (OWC1333DDR3S2GB) at Amazon.com