You can see from the images the internal components of the laptop:

2 x SO-DIMM RAM slots, one of which is beneath a piece of protective plastic. Up to a max of 16GB RAM (2 x 8GB sticks)

1 x M.2 NVMe SSD - Supports 2280 size (80mm) M Key port

1 x M.2 slot - Standard 2230 size (30mm) A+E Key port for WiFi/BT card

Various other components can be seen including: Heat Sink bar and heat spreader with fan assembly, USB port connections, speakers and connectors etc.