I bought 2 of these. One came with the correct power adapter(They use no name universal replacement ones). The other one came with the wrong head for the adapter.At least the power adapter don't make the PC complain about the voltage however I would replace with OEM if you can.The outside looks decently clean. The insides however were disgusting on both.All USB, Display port,HDMI, and rj45 ports work. Specs on machine match what I was getting on Bios and Windows. The SSDs looked old and were brand I never heard of but didn't state they were going bad when I checked them. I'm sure your will vary...Mine both came with a cheap keyboard mouse and USB wifi adapter(bgn). I would just trash them.