Hydro series hg10 a1 edition gpu cooling bracket the hydro series hg10 a1 edition allows you to attach a hydro series cpu cooler not included to your amd radeonreg r9 290 or 290x for better cooling and quieter operation it installs quickly and easily with only a screwdriver it can reduce your gpursquos temperature by up to 50deg c and your gpursquos automatic temperature control will lower the speed of its onboard fan for quieter operation the hg10 bracket cools not only your gpur