I use this tower for cad drawings and video editing so I added a AMD FirePro W2100 2GB DDR3 graphics card and a fire-wire port pci card on the other slot. 1TB SSD used as the primary for windows, programs and files being used and the 2TB for additional storage. This powers threw everything I ask of it quickly and am very pleased with the purchase after months of use.  There was an issue reinstalling windows onto the new drive and contacted the seller -  Blair Technology and they where quick and helpful, rather outstanding on their customer support for the great pricing they have on their equipment.  The tower came clean and looking like new, no cosmetic damage and only when blowing compressed air found a hint of dust hiding around the possessor, overall very clean for a used tower. The only bad about the package is the mouse and keyboard are the lowest quality I have used so ended up replacing them.  I would recommend purchasing this from  Blair Technology but if you find it from them a few bucks cheaper without the mouse keyboard go that route and buy your own mouse and board or you will likely replace them after throwing them against the wall.  Side note, I had seen some reviews of the SS-USB ports not working, mine did not work after the first boot up, updated window's and drivers and they have worked great ever since so just be sure to update the drivers, that was something I did on my own but if you have any issues I am sure Blair would walk you threw getting it updated and working if you get one with that issue.