i jst bought this ECS NF650iSLIT-A motherboard off newegg but it was an open box item and didnt come with the back I/O panel and i was wondering if someone knows were i can buy one.
If you are you talking about the I/O Shield (the thin metal piece that fits around the inputs on the back) then those are specific to the motherboard model and the only thing I can suggest is to look at the manufacturers website to see if you can order one.