If you are looking for a very compact PC, this unit is rather nice.  It is actually smaller than a Mac Mini.  Unfortunately, it requires a separate power supply, instead of a simple power cord.  This particular model does not come with an HDMI port.  The seller I purchased from (Refurbtech) supplied a mouse, keyboard and a displayport to HDMI adapter cable.  The unit is got was in superb condition, so I breathed a sigh of relief.  This PC is easy to open up and make changes.  For instance, I had no use for the SVGA connector on the back, which was easily replaced with an HP HDMI port module.  Adding or changing SDDs or RAM memory is a snap.  The unit does not support Windows 11, due to the hardware requirements.May your purchase be as fruitful as mine was. Have a great day!