The HDMI port on the C536 is a 2.0 port so you would need an HDMI cable that supports the 2.0 port; so, I don't think you need an adapter for it. This is what I think anyway. The 2.0 is fairly usable with most HDMI cables you just won't be able to display a 4K image unless you get a good HDMI 2.0 cable. The difference is bits per second. A poorly made HDMI 2.0 will get 15bps but a good HDMI 2.0 will get 18bps in 4K if using. I'm using a Zescit Cinema HDMI 2.0b cable for my 4K TV which can deliver up to 24bps on it.