NoticePC3L-12800, Unbuffered, Dual Rank, Non ECC, 1.35V / 1.5V CL11, for AMD, Intel system. ^^ Advanced Quality DDR3 RAM are high quality ram. ^^ 8GB DDR3 Ram, 100% tested for stability, durability and compatibility. ^^ Please make sure your Desktop model meets DDR3 1600, 16GB Kit, May not work on all devices, Please clean the connection figure (Gold finger) gently with eraser.