I bought this to replace my dying HP 8540 workstation that does not have a TPS.  The Amazon ad originally said the workstation was Windows 11 compatible, but now I see that phrase was removed. I really like this computer as it is the same one I used at work for many years.  Very powerful and dependable.  The only reason this PC was not in the Dell list of computers that can be upgraded to Windows 11 is 51% (or more) of the time Windows 11 was installed on this computer model, it would crash.  I was able to get Windows 11 installed, but had to go through some hoops to get it to work.  So, despite what a fantastic computer this is for Windows 10, I would not recommend this for Windows 11.  I would recommend a computer that has passed testing by Dell.  They are about the same price, re-furbished as this one was.