CMS 4GB (2X2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with IBM® System X3200 M2 4367, 4368-Xxx for Server Only - B64 at Amazon.com
WD950D - Super Talent 4GB Kit (2X2GB) DDR3-1333MHz PC3-10600 Non-ECC Unbuffered CL9 204-Pin SODIMM 1.35V Single Rank Memory