RTS brand All-in-One Desktop PC with no particular model name or number that I can find.  Running latest Linux Mint Debian Edition 21.3.  Several small cosmetic issues on this machine and no stand included, but actual operating conditions seem to be just fine.  There are several scuffs on the back side and the front glass has some chips around the bottom (see pics).

* 21" Full HD 1920x1080 Display w./ Integrated Webcam

* Intel Pentium G630 - 2 cores, 2 threads @ 2.70 GHz

* 16 GB Dual-Channel DDR3L Memory

* Intel Wi-Fi + Bluetooth + Gigabit Coke

* 256 GB Solid State Drive

* CD/DVD-RW Optical Drive

* SD Card Reader

* 2x USB 3.0 + 4x USB 2.0 ports

* 1x eSATA port

* HDMI output

* Linux Mint: Debian Edition v21.3

* Power Supply Included