Lenovo 512MB NP DDR2 SDRAM UDIMM 0.5GB DDR2 533MHz ECC memory module

512MB NP DDR2 SDRAM UDIMM PC2-4200 CL4 NS (MSD) Fast Double Data Rate PC2-4200 memory offers maximum data transfer rates up to 4200MB/sec to help you increased performance of memory intensive applications such as steaming video, graphics and CAD programs. Adding more ThinkCentre memory is one of the least expensive ways to help boost overall desktop system performance and allows more multitasking which saves time and hassle.