Like the NUC the BRIX PC will ship as a barebone DIY kit and it is available with a range of Intel processors, including Core i3, i5 a i7 chips. As it is too small for traditional 2.5-inch storage, it relies of an mSATA slot for SSDs. It also has two SO-DIMM memory slots and can take up to 16GB of RAM.
HDMI, mini DisplayPort, WiFi and two USB 3.0 ports are also on board. All in all it looks like a more powerful version of the NUC and the price will probably reflect this. Sadly though, Gigabyte has not revealed any pricing info.
The BRIX should show up this summer. However, judging by the weather in much of Europe, summer is probably coming in August or September.