4GB (1x4GB) DDR2 800MHz PC2-6400 Single Stick 200-pin SODIMM Laptop Memory RAM 2Rx8 at Amazon.com
4GB DDR2 Memory Ram, PC2-6400 PC3-12800R 32GB DDR2 800MHZ PC Memory Ram 240Pin Module Board for Desktop Computer, for AMD at Amazon.com
Komputerbay 8GB (2 X 4GB) DDR2 DIMM (240 pin) 800MHZ PC2-6400 PC2-6300 Desktop RAM with Red Heatspreaderss for Extra Cooling CL 5-5-5-12 at Amazon .com
12GB (3 x 4GB) DDR3 800MHz PC3-6400 240-PIN ECC DIMM (UDIMM) Memory RAM KIT for Servers/WORKSTATIONS/MOTHERBOARDS at Amazon.com
OWC 8GB (2 x 4GB) 1867 MHZ DDR3 SO-DIMM PC3-14900 204 Pin CL11 Memory Upgrade (OWC1867DDR3S08S) at Amazon.com