j5create - DisplayPort to 4K HDMI Active Adapter - White

thought having 2 of this might make my video card have 2 more hdmi ports for stretch res, no the delay between the adapter tvs and the hdmi tv is ridiculous. also it says its 60hz but thats a lie. it only does 60hz in 1080p resolution. in 4k resolution it only does 30hz, thats terrible! buyer beware, might be ok for presentations, but for pc use, this invention needs to go back to get finished.