Rendered with Cycles (in Blender) and Corona (in 3ds Max). With Eevee (Blender) looks good too. 5 texture packs (BaseColor, Normal, Roughness, Metallic) — for system unit, keyboard (the keyboard has no metallic elements so it hasn't metallic texture), monitor, mouse and power plug, sound column. All textures are png, 4096×4096. Additional texture for the screen. The size of the entire model is 91×76×44 cm, but you can reconfigure it (move monitor or keyboard, delete power plug or mouse etc).
7 separated objects:
I have no idea where you will place a socket in your scene and will it be visible, so I didn't connect the power plug with any wires and just placed it separately near the computer. If you need you can place this plug in right place and add wire with the curve.
Faces: 24479 Verts: 14862 Triangulated
Easy to use in Blender: place 3D cursor in a proper place, then use File - Link - select the model ('oldcomp_baked.blend') and select collection ('oldComp' or 'plug').