@smyers158 - This will not work on your Dell C610. According to crucial.com you need PC-133.
Folks - This is a good deal! Hynix is one of the OEM brands that Apple uses and this would fit a good number of the early Intel Macs such as from 2006/7. If you have spare slots.
It will also fit a good number of current laptops and some netbooks. The best place to check that I've found is the crucial website.