@moming
Just uploaded
@vlad1966
Great choice of case!
I actually did quite a bit of research on sff builds.
To be honest with you, the K1200 is not a good buy if you don't match all the conditions in my build.
1. Half Height
2. Single Slot with out modding
3. Multiple 2160p displays
4. under 75w tdp (most 75w card actually pull about 85w, k1200 is only 45w tdp)
5. sleep/wake works properly
I am not a professional CAD/graphical content producer, can't really comment onto professional use of it being a Quadro card.
By looking into the U2, which support dual slot, full height, and I believe it has room for auxiliary power.
I would look into a short GPU like rx460, rx470, if you can live with the boot with black screen.
Or gtx950, gtx960, gtx970 short, if they are still available.
For rx470, XFX makes one listed as 22cm.
For gtx960, EVGA makes one single fan, short card which is about 18cm.
All of these cards are more suitable for home users.
750ti is still good as well, depends on your desired resolution and monitors setup.