Thank you for contacting the Intel Communities.
Regarding the pheripherals that have been tested for this unit, here you can find them: http://www.intel.com/content/www/us/en/support/boards-and-kits/000020804.html?wapkw=nuc6i7kyk
About the external graphics dock, after doing my research, as of now (5/19/2016) the available would be the Razer Core: http://www.razerzone.com/store/razer-core
For future external graphics docks (not known when they can be released), as long as they meet the Thunderbolt™ 3 standard, they should work with your system as well as peripherals.
- Premium Graphics with Thunderbolt™ 3 Technology video (products not released yet, external docking present in that video): http://www.intel.com/content/www/us/en/io/thunderbolt/thunderbolt-3-technology-premium-graphics-demo.html
- Second video related to external docking: https://www.youtube.com/watch?v=BFkp0GHz5v8
Some additional information on Thunderbolt™ 3 can be found here: http://www.intel.com/content/www/us/en/io/thunderbolt/thunderbolt-technology-consumer.html
NOTE: These links (external links) are being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
I would recommend that you keep on checking on other external websites (external to Intel) due to the fact that peripherals such as the one you mentioned is a non-Intel product, one good site is this one here: Products | Thunderbolt Technology Community
I would also encourage other community members to share their findings and feedback, that is really beneficial for the community.
Skull Canyon Thunderbolt is over alpine; external graphics will disappoint.
Intel is always seeking to provide the best customer experience while using their products, hope you can give the Intel® NUC Kit NUC6i7KYK a try in the future.
If you require any further information or support, do not hesitate to contact any Intel support channel.
I have Skull Canyon, it's good; some problems with audio/video/HDMI but you guys quickly fixing it and that is great.
1. Matched pair-SO-Dimm DDR4-performance memory is very difficult to obtain outside of America, next version please consider going with full size ram. Many Memory distributors OCONUS are not willing to risk stocking SO-DIMM.
2. I saw a photo of a M.2 -> U.2 riser cable on a Asrock Extreme 7+ board connecting it to Intel SSDs; would this riser cable be something compatible with Skull Canyon?
This NUC, although wider, is half the height of the not-tall previous NUCs.
There is not enough room for a U.2 connector with the lid on.
I would bet that this little guy would be very unhappy running without the lid on.
Thank you for the clarification on that OEFVet.
-The use of SO-DIMMs is to keep the form factor meaning the size of the unit small.
-Risers or adapters are not fully supported for the Intel® NUC Kit NUC6i7KYK, Scott_T's comments are applicable for this inquiry for sure.