wow 77 bucks thats a good deal compared to http://shop1.outpost.com/product/3328752
but will it work with my muskin dram in dual channel or they the same?
I believe the way it works is that they have to be the same capacity, which both will be 512, and they both have to operate at the same frequencey, which both will opperate at DDR 400. The only other hitch is that sometimes different brands conflict, but these will both be Mushkin. The only differnece between the two chips is that one is Basic and one is Advanced.
I don't think that will cause any problems, but if it does, Newegg is a great store to work with when it comes to that type of problem. I'm sure you'll get all your money back if it doesn't work.
Truthfully, you should have gotten Enhanced to begin with. Basic is known for causing difficulties in things like overclocking, and it might not be as brand friendly as the enhanced. I've heard of people that just plain couldn't overclock because their Mushkin Basic was causing problems.