PC3-12800 DDR3-1600 UDIMM memory offerings let you upgrade your system's standard memory capacity to improve overall ThinkCentre or ThinkStation system performance. Adding additional memory is a cost-effective way to help boost your system's performance and enhance its ability to run more programs simultaneously.? Choice of available memory sizes for DDR3 UDIMM memory ? Increased performance over PC3-10600 DDR3-1333 memory ? Test-proven 100% compatibility listed for supported systems ? Meets stringent Lenovo reliability standards for memory products ? Lenovo limited warranty ? Lenovo memory installed in a new Lenovo system automatically assumes system warranty