Intel's new Apollo Lake NUC (NUC6CAYH) will have a 10W Celeron CPU, 2 memory slots, dual integrated mics for voice recognition, a 2.5" SATA drive bay, 4 USB 3.0 Type-A ports, HDMI 2.0, Gigabit Ethernet, 802.11ac Wi-Fi, and an infrared receiver; all in a compact 4" x 4" package.
http://www.notebookcheck.net/Intel-releases-complete-specs-for-new-Apollo-Lake-NUC.186811.0.html