Intel Celeron J1900 2.0 GHz CPU with integrated graphics,, 802.11n WI-FI, Gigabit Ethernet, 1x SATA, 9.5mm HDD/SSD bay, DDR3L memory. It has VGA, HDMI and Displayport, however only 2 of them can be active at once. We installed a 4GB memory stick and a 128GB SSD, aswell as Windows 8.1.
Performance is ok for the price, the Celeron J1900 can run a full-screen HD movie without problems, but it's not the right choice for multizone or multilayer.
Pros: Affordable, good airflow, multiple video-outputs.
Cons: Smaller models available. A little finicky to build yourself, purchase it pre-built if possible.