 "Corsair XMS3 - DDR3 8 GB : 2 x 4 DIMM 240-pin" " Corsair 240-pin CMX8GX3M2A1600C9 System Memory (RAM) CDWG.com
"The XMS3 family is Corsair's mainstream line of performance DDR3 memory. These modules allow users to experience outstanding memory performance and stability." 
 "Crucial 4GB PC3-12800 240-pin DDR3 SDRAM DIMM"@en DIMM (CT51264BD160B)"@en