8GB DDR3-1600 ECC UDIMM FOR LENOVO DESKTOPSAxiom Memory Axiom 8GB DDR3 1600 ECC UDIMM for Lenovo 0B47378 8 GB DDR3 1600 PC3 12800 DDR3 SDRAM 1600 MHz ECC 240 pin UDIMM Lifetime Warranty VPN: 0B47378 AX SKU: RSC966445 UPC: UDIMM 8 GB capacity is enough to execute all memory hungry programs simultaneously 1600 MHz of memory speed allows you to browse web, listen to songs and use routine software simultaneously 240 pin pin DDR3 SDRAM interface multiplexes 2 bit data from memory cell and I O buses