Received unit yesterday 4-5-23 and unpacked and attached monitor, case, and remote (new)mouse & keyboard on hand held as spare rather than USB wired units.Unit did boot and connect to net as linked by ethernet. Used one of the 19' monitors which color is acceptable and typical for this generation of computer.To identify unknown  type ports, took close-up pictures and discovered the one(later developed name) of the "DVI" ports badly burned, and the second suspect. Also there was open hole where possible at one time held a device of some sort. (Visible in pics 1 & 2) Gaping hole slot pic 4)The "About" (computer) internal blog states CPU speed at 3.3 GHZ (and possibly MB has  been upgraded also) which might explain the vacant slot opening.The unit appears to function, but have only downloaded a browser (Vivaldi) via ethernet and no further activity on unit. Have not tried to get wifi working, as prefer to use hard line connection where possible. I would not consider this a good buy. Your mileage may vary. TLee