I bought this to use for a headless server in my house.  I don't need anything powerful for gaming.  This little unit is super silent.  If not for the power lights, I'd never know it's running.  It would make a really good media server.  It has a secondary SATA port for expansion of the HD, which is nice to add more storage.  The WiFi on my unit is built in, connected with no issues.  I run it via the wired connection so I didn't stress  test the WiFi.  I haven't used the included keyboard or mouse.