Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
This looks like a pain in the ass to work with. You have to pull the GPUs through your 5.25" bay one by one and then you've got hoses sticking out the front of your case. lol
I have the 49UB8500. You are just talking about the labels by the HDMI ports right? Ignore them. I have no idea why they are there, but they make no sense.
Port 3 is HDMI 2.0/HDCP 2.2 compatible. The rest are not so don't use them unless you have to. My TV came with a little card saying as much.