Amazon’s got yet another ultra-enticing one-day sale for PC enthusiasts. and one HDMI. It doesn’t have variable refresh. Unlike PCs they will not offer DisplayPort connectivity to support 3840 x 2160 @ 60Hz – so you will need to make sure that the monitor you’re looking at supports HDMI 2.0 or newer. This contrasts with the regular PS4, Xbox One and older consoles that will only run. How Much Is…