Kingston KVR16N11S8/4 4 GB 1Rx8 512 M x 64 bit PC3-12800 CL11 240 pin memoria DIMM
So soon that old account will be inactive. You can check my opinions. I'm sorry for the confusion. You are buying what is in the picture. There is no box or certificate (Unless you see one of them in the photo then it is attached).