Display cable too short

I use the Dr. Bott 2m extension cables. But they are not the only ones that make monitor extension cables.

Google: apple 27" led display extension cable

Note these are for the older apple 27" LED display with a mini-displayport. Is that what you have or the newer thunderbolt 27" display? At the moment a quick google search did not turn up any TB extension cables.

I get cables here:

http://www.monoprice.com/

this is a 3 ft extention

http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10246&cs_id=1024602 &p_id=5501&seq=1&format=1#largeimage

it is what I am using now. for my 24" LED CD, Mini plug

Yes, I know all about monoprice. It's my preferred place to buy cables and adaptors. But I specifically don't recommend monoprice for mini-displayport cables because for some odd reason all they seem to carry is mini-displayport cables without audio pass through. For example look at the description for the cable you linked to.

Of course if you don't want or need the audio and use usb instead then those cables are fine.

When connecting a MacPro and LED CD you do not need the audo in the extention cable since the audio in via USB. It is a matter of need and cost. The funny part is the only time is use the built in speakers on the LED is when my dughter gets home from college and take my external speakers to her room.