Buy IBM 39M5785 Memory Kit Bus Speed: PC2-5300 (DDR2-667) Form Factor: DIMM Memory Type: DDR2 SDRAM Capacity: 2GB (2x 1GB modules) Number of Modules: 2 ECC Support: Yes, Error-Correcting Code (ECC) for improved data reliability Buffered: Fully Buffered Pins: 240-Pin Designed for: Server Memory Upgrade