This item seems to work well- EXCEPTthis unit will not accept wireless usb keyboard (tried 2)orwireless usb mouse (tried 3);"not recognized" window appears.It came with new windows 10 pro. Those Peripherals work with other windows 10 boxes.I will keep.  I'm still disappointed with the refurbishment of this unit.Amzaon tried to help.  No joy.