Got it for my ancient Dell inspiron 1520 laptop upon doubt that the existing DDR2 ram has failed as suggested by the remedy manual.
Had upgraded to these 667 Mhz rams on my lappy from 553 Mhz pieces.
https://www.amazon.com/Samsung-2GB-2Rx8-PC2-6400S-666-12-E3-DDR2/dp/B00AKIPTC6


