Kindly be advised:

1, The Processor is Intel i5-3317U CPU: Dual Core, Quad Thread; Base Frequency: 1.7GHz, Max. Turbo Frequency: 2.6GHz, 3MB Smart Cache, integrated Intel HD Graphics 4000:Graphics Base Frequency: 350 MHz; Graphics Max Dynamic Frequency: 1.05 GHz.

2, The default Operating System is Windows 10 Pro; please leave a message in your order to remind me if you need others, Optional: Windows 7, 8.1;
The Windows 10 Pro is licensed and activated before shipping. Please check its license condition when it arrives: press "Win+R" keys-input "slmgr.vbs -xpr" to run(note the space between vbs and -xpr) Ubuntu.

3, it has been tested well before shipping, if any questions, please feel free contact us, you will get a satisfied solution.

Front-Panel Connectors:
1 x Power switch button (Power LED)
1 x HD LED, Power LEDs
4 x USB 2.0 port s

Back-Panel Connectors:
1 * 12V DC input
1 * HDMI port
1 * VGA port
2 * Intel 82574L Giga LAN Port.
4 * USB 3.0 ports
4*COM ( RS232 ) ports
2 * Audio Connector(for Speaker and Microsoft)

Packing List
-1*Mini PC
-1*Power adapter
-1*Power Cable with US plug;
-1 Set of Power and Data Cables(for 2.5'' SATA Drive)
-1*HDMI cable(as a gift)
-2* Wi-Fi antennas.
-a Bag of Screws.

Application:

-Used in workingshop, factory, Internet Bar, bank, supermarket, library, reading room, hotel, training, call center, CCTV company.
- used as HTPC(Home Theater Personal Computer). Connect HDTV with the HDMI cable, enjoy education online and play internet movies or games.
-used as Personal Computer, high configuration and fast speed, zero noise.