Crucial 8Gb Kit (4Gbx2), 240. Pin Dimm, Ddr3 Pc3. 12800 Memory Module . 8 Gb (2 X 4 Gb) . Ddr3 Sdram . 1600 Mhz Ddr3. 1600/Pc3. 12800 . 1.50 V . Non. Ecc . Unbuffered . 240. Pin . Dimm "Product Type: Memory/Ram Modules" Memory RAM Modules