This was the second PC I received from this vendor.  The first PC was sent out with the wrong external DVD drive.  This PC worked great out of the box but the Wi-Fi stop working around 2 1/2 months later.  I contacted STG USA, who gave me general trouble shooting steps which I had already tried but didn't get the Wi-Fi to work.  My return eligibility was only good through Nov 17, 2024.  I contacted STG two more times but received only emails when I asked for a support telephone call.  I did receive some support from Amazon support team but the vendor offered very little support for the Wi-Fi problem.  I rated this 3 stars only because the ThinkCentre M900 is a sound PC but this vendor offered no technical support.