zalman9700 LED , bare copper, blue LED, and 3 pin connector , adjust fans speed connector
zalman9700 NT , nickel plated, green LED, and 4 pin connector , automatic fan speed

*ppl say the bare copper will rusty in some environment , and 9700NT will avoid this problem

i dun know the market la , i buy 9700NT in rm247 few month ago from low yat ,
running in Q6600 , idle 37C , before stock fans like 44C