Improve overall performance of selected ThinkPad or ThinkCentre systems by upgrading with additional memory. PC3-10600 DDR3-1333 DDR3 SODIMM memory offers maximum data transfer rates up to 1333MB/sec to help you increased performance of memory intensive applications such as streaming video, graphics and CAD programs. Adding more system memory is one of the least expensive ways to help boost overall system performance and allows more multitasking which saves time and hassle.Features & Benefits:- Test-proven 100% compatibility listed for supported ThinkPad and ThinkCentre systems- Lenovo limited warranty- Lenovo memory installed in a new Lenovo system automatically assumes system warranty