4GB DDR3 PC3-12800 240PIN CL11 1600MHZ DIMM 512X8V7 4GB DDR3 SDRAM Memory Module For Desktop PC 4 GB DDR3 1600 PC3 12800 DDR3 SDRAM 1600 MHz Single rank Memory CL11 Non ECC Unbuffered 240 pin DIMM 10 Year Warranty VPN: V7128004GBD U SKU: RSC611371 UPC: 5050914185152 DIMM 4 GB of memory makes a perfect symmetry with your latest model processor and boosts up your computer's performance 1600 MHz of memory speed allows you to browse web, listen to songs and use routine software simultaneously 240 pin