You didn't mention the P/N of your module and I presume that this is HX424S14IB2/8. If I'm right it should work, although it is not listed on the tested by Intel memory: http://compatibleproducts.intel.com/ProductDetails/ExportPeripheralInfo?moduleName=Intel%C2%AE%20NUC&productType=Kits&pr…
2400 MHz memory modules will work on these Intel NUCs, but because the processor only supports speeds up to 2133 MHz, higher-speed SO-DIMMs operate only at the 2133 MHz memory timing.
If you plan to install just one SO-DIMM, install it in the lower memory socket.
Hope this helps