Inside, there is a 8 Gb Raspberry Pi 5, a Pimorini NVMe base (that holds a 500Gb NVMe SSD). I'm using an actively cooled aluminium heatsink on the Pi, but I have also added a secondary 30mm fan for venting the metal enclosure.

The monitor is a standard 7" USB powered HDMI screen.

The dimensions are 26 x 12 x 7 cm. 

I bought some chinese panel mount extensions for ethernet, USB A and power (USB C). Unfortunately none of the USB C cables from Ali Express worked for power delivery.

I am currently running this on external power, but there is space inside for a decent sized power bank (I just have to find one that fits and that also allows for power delivery while charging)