Is it possible to connect a WiiU to an iMac?

If I'm not mistaken the 27" iMac has an HDMI input so you can use it as an external display - that should work

 

No, Target Display Mode requires the source to have MiniDisplay or ThunderBolt ports...

http://support.apple.com/kb/HT3924

 

I believe Kanex and other companies have made Mini Display port to HDMI for this purpose.

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http://www.kanexlive.com/xd

This box will do the trick for you

 

That only works for pre-thunderbolt macs. Any mac that has a thunderbolt port rather than simply a mini-display and you're wasting your money.

Therefore it really depends what iMac the OP has

 

I use the Kanex XD adapter on my iMac, though it's a pre-thunderbolt model.

Whenever it kicks the bucket or I decide to get a new Mac I'll probably get a standard monitor to use in conjunction with a Mac Mini or Macbook Air so I can keep running a similar setup.

 

That's my setup...I have a HDMI-to-DVI converter cable (cheap on Amazon) hooking up my Wii U to my Dell monitor, and have the Mac hooked up via the displayport cable.

The only problem I encountered was recently with Zelda...it's detailed in another post, but, for whatever reason, every other game played the sound out through the gamepad ok, so I could just wear headphones. Wind Waker has required me to hook up my old Wii composite cables to get sound out.

Of course, the solution would be to get a computer monitor with sound/built-in speakers, or something.

 

Speakers that are built-in to monitors are almost universally terrible though.

 

wii u hooked up to mid 2010 27 inch iMac

Hey all, new to this forum so... I have no TV and want to use my iMac as the display for my wii u. I just bought a mini display port to hdmi converter for about 5 bucks on eBay. Hooked everything up and tried to go into target display mode by hitting cmd + f2 (well, fn + cmd + f2) This has no effect whatsoever. What the heck am I doing wrong? Very frustrating...

 

As stated above:

The Wii & Wii U do not have this so it will not work.

 

So what you're saying is that the picture by Neoelectronaut a couple posts above mine is a fake?

 

no. His mac is a pre thunderbolt mac which can work. That doesn't negate my statement.

He is using an adapter of some kind with mini display port. You need to hav a pre thunderbolt mac as mentoned above and the right adaptor to make it work. If yo don't - you are likley SOL.

 

I do have a pre-thunderbolt Imac. I guess I can't get this thing to go into target display mode because I don't have the right adapter. Again, it's just a five dollar "premium mini display port to HDMI" adapter. I'm not sure if it matters or not but my mac is a single core i3

 

In that case, you are going to need something like that what was posted above:

http://www.kanexlive.com/xd

Whatever adapter you have isn’t going to be enough. It’s not doing the proper conversion. It’s likely just designed for video conversion and that’s it. It’s not a proper display source.

 

The Avermedia ExtremeCap U3 should work for the later thunderbolt based iMacs. It is the only product that I know of that allows you to play games on current iMacs.

 

Would this also work for MacBook Pro? I would imagine so, but I can't find anyone that's tried it.

edit: noticed its usb 3.0 so definitely should.