This unit boots up into win-10 in fourteen seconds and that includes checking the CD+DVD drive then the USB devices for a bootable disk/device, Win-10 shuts down in four seconds.  It is quite small for a full sized desktop confuser and very very quiet.  It has six USB3 ports, but they are labeled "SS" and black instead of blue.  (the usual color)  It also has four USB2 ports good for mouse, keyboard and other slow things.  (two of each kind on the front panel)  It is all set up for adding a second two and a half inch storage device.  It includes a solid state drive, all eventually fail fail just like spinning drives, so you need to keep copies of all of your important "stuff"on an external drive of some kind that is kept powered down when it is not being updated.This is to prevent wear and to keep all cropto-locker viruses from corrupting that drive.  Mine came with a DVD (or CD?) to install win-10 on any replacement drive.  The USB3 ports and an external USB3 storage device makes that less painful.  The unit comsumes about 45 to 50 Watts (variable and measured) and it has a 240 Watt power supply unit.  I can't recommend it higher.  It comes with a very short power cord, you will probably need to use it elsewhere and use a six footer to reach an outlet.  Ron W4BIN