4gb ddr3 1333 $34 each

http://www.newegg.com/Product/Product.aspx?Item=N82E16820226094

Use code DKMEM15 for 15% off

~$70 for an 8gb setup wouldn't be bad. Unfortunately those have pretty bad speed and timings

the code can be used for any memory, probably could have mentioned that

it is for a file server so the cheaper the better for me and this is as cheap as i've seen it

This would be mainstream RAM. The "9" latency and 1333 MHz. frequency aren't really an issue for most people as latency is of less importantance with the higher frequency used in DDR3 RAM. My testing shows less than 1% diff between 11-11-11-30 2T @ 1333 MHz. and 8-8-8-24 1T @ 1600 MHz. YMMV.

Mixing of RAM may or may not work without issues however. That's why it's best to buy one, matched, tested compatible RAM kit for a specific CPU/platform instead of several sticks of a particular RAM part number.