Axiom AX - DDR3 - module - 4 GB - SO-DIMM 204-pin - 1600 MHz / PC3-12800 - unbuffered - non-ECC - for HP ProBook 4230s, 4330s, 4431s

Low power consumption. DDR3 operates on a reduced supply voltage thanks to its efficient design. Powerful performance. DDR3 nearly doubles the speed of DDR2 by offering faster data rates. Higher bandwidth and density. DDR3 allows better computer performance thanks to the fastest data transfer rates available.