Product Description Purchase BWI MEM512DDR2-667K2 240-pin 512MB DDR2-667 PC5400 Memory (Kit of 2) BWI MEM1GBDDR2-667K2 240-pin 1GB DDR2-667 PC5400 Memory (Kit of 2) BWI MEM2GBDDR2-667K2 240-pin 2GB DDR2-667 PC5400 Memory (Kit of 2) BWI MEM4GBDDR2-667K2 240-pin 4GB DDR2-667 PC2 5300 Memory (Kit of 2)