Hey,
1) Newegg has the GX-850 SSR 850-FX, 10 year 120mm fan $114 full mod v2.4 or v2?
2) GX-850 v3 135mm fan 10 year $149 full mod
3) GM-850, 7 YEAR 120mm fan semi-modular $129
I'm guessing the top 850 is older stock newegg is rotating but I would trust it more than the GM-850...