What was missing in NUC i3 with bay 2.5 "(D34010WYKH2) / 2x4Go PC12800 / Hitachi Travelstar 7K1000 - 1TB From extremely responsive PC hit with a VERY quick start Kubuntu 14.04 with TRIM enabled. Very fast installation with screws provided (who were also already provided in the basic NUC, bravo INTEL).