http://www.samsung.com/global/syste...708555ds_ddr3_1gb_d-die_based_rdimm_rev11.pdf here is the full pdf. here is the model number. M393B5170DZ1-CF8 There are a few good sellers of this at 90 to 120 for 4gb sticks. Or 360 to 480 for 4 sticks of 4 toal 16gb. This is for the 2.8 quad and the 3.2 quad. It specs that it should work. I will get back on this over the weekend or monday. As of now I don't know if it works. Apple uses samsung a lot. I have used samsung in many of my mini mods. If it test well I will list the sellers. I get $0 from any of them. If any one knows me from 123macmini forums they will let you know that I did this with a few dozen items for mini's. peace out.