These are powerful mini desktop, fully functional and tested.

CPU (Optional): i7-6700 3.40GHz or i7-7700 @ 3.60GHz

Memory: 16GB DDR4 

Storage (Optional): 512GB SSD, 256GB SSD or No SSD

OS: Windows 10 Pro

Graphics: Intel UHD 630

BIOS Unlocked

AC Adapter included.

Note: The rubber feet strips might be missing on the i7-6th gen.