I did not receive what I ordered, a HP EliteDesk 800 G4 4CB30UT Mini Desktop, but model 5PA44US. It’s still an EliteDesk 800 G4, but it came with an 8600T processor instead of the 8500T. The 8600T runs at 2.30Ghz. Is it better, I do not know, as it works and is sleek and is very fast. This model new from HP came with an 128gb SSD and it was upgraded to a 256gb KingFast SSD. Like I say it is fast, but never heard of that brand. Unlike the 800 G2 and G3, the G4 can run Windows 11. Turning it on for the first time, gave me a screen that ask me if I wanted to run Windows 10 or 11, so TPM was Enabled. I choose Windows 11 and the system brought up the Windows Update screen that would install Windows 11.  When done I was confused as in the box was a USB WiFi and Bluetooth adapters where I found in this model they are both build in to the system. As the G4 only became available three years ago, the WiFi is 5GHz and works fine. As it turned out, the build in Bluetooth driver failed to work. At around $325, this system is really a bargain. New it sold for over $1000 and today on eBay over $500. There are a lot of driver updates available including a BIOS Firmware update to version 02.15 which means the system is very up to date. What is not up to date is the HP system software, first program I added was the HP Support Assistant, which I used to install many of those those updates. I wanted a system with Windows 11 and I now have one and at a very good price. Am I happy, I would say yes.