Download Desktop PC Set Free Unity.
This set include original 2048×2048 PBR textures(Albedo/Normal/Specular/AO/Emission) for each model.
Most models have separate elements for more fine-tuning in the scene(check screenshots).For example:
The monitor screen can be rotated.
All buttons on keyboard can be pressed.
Mouse wheel can be rotated,and button can be pressed.
Models dont have any animation for their parts,but “Computer” already have baked fan animation.
Most emission maps is white,this mean you can easly to change his color in the material ‘Emission’ channel.