OCZ Platinum 4GB (2 x 2GB) PC2-6400 DDR2 Desktop Memory for $69.99 shipped with MClub membership and after this $10 rebate. MClub is basically a free subscription to Mwave’s discount and emailing list. Here is a screenshot for your reference. This memory operates at 2.1V at a speed of 800MHz. This set of RAM usually sells for about $99.