First off let me say that this is a good PC for the price.  Just a new Intel Core i5 will run you about (or more) than what this entire PC costs.  Not sure if it says anywhere but the 2 Terabyte HD on mine was a name brand Western Digital Enterprise Storage, which is nice.  Tower itself is solid, functional, and looked almost like new.But when I turned the thing on Windows did not start up.  It said there was an error.  It would not restore or do anything.Now I am a Technology Coordinator at a school so I am familiar with installing windows and such things so it was actually not a big deal for me to download windows from their online site and get it installed using a flash drive.  But someone who is not all that familiar with computers probably would have had to send this back or call for technical support.  So just to note:  buyer beware in this situation with what is essentially a used/refurbished PC.Other than that I would note that the power supply is NOT built for any kind of expansion AT ALL.  There is only one extra SATA power connector towards the top and it is so short as to be almost useless.  If you are trying to install a video card you might want to look for one that does not take external power other that the PCI-E.  Also this thing uses special Dell hard drive caddies which cost about $20 on amazon and it does not have an extra so keep that in mind if you are thinking of adding another hard drive.Most of the above I am not really complaining about.  This PC is very inexpensive and well worth the limitations of non-expandability.  Just want people to know about these limitations.  I am giving only 3 stars because Windows did not start up for me and I had to reinstall it myself.