feelinfroggy777 :
Your motherboard comes with a high bandwidth SLI bridge. There is no reason to get another one as performance will be the same.
By the way, SLI is dead and I would advise not to waste your money. I have run 1080ti's in SLI and when scaling is good it is around 30%. But most games dont support SLI and you will get zero or negative scaling. I found that I had SLI off most of the time.
Additionally, the monitor will be your bottleneck. The 1080ti can manage 4k/60hz for the vast majority of games, so unless you are planning on spending $2k on a 144hz/4k panel, there is no reason to go SLI.
mcconkeymike :
Seriously I wouldn't run SLI since many games don't properly support it and I've done it before and it was a real pain in the butt. Also, what kind of monitor setup are you running that you think you need SLI 1080ti's? Unless you are running 4k 144hz or 8k a single 1080ti will run it just fine.
ahh...i didnt know that cause the mob still otw inside fedex airplane.... i didnt know about the history of SLI, i just wanted to give it a go, and since the cards are otw already, might as well try it.. if its that bad or not worth it.....then i use the 2nd card on my 2nd rig which running on intel (first pc on ryzen)
as of now, i owned 1 asus monitor 144hz, but i planning to get additional two more next year, so that will be 3 monitors,,, will sli be usefull here ?