School Computer Classroom Low-poly 3D model is available on CGTrader for $9. Original author: militarymodels99.
STL (Stereolithography, filesize: 22.8 MB), OBJ (OBJ, filesize: 15.7 MB), BLEND (Blender, filesize: 7.33 MB), FBX (Autodesk FBX, filesize: 15.6 MB), GLTF (glTF, filesize: 5.47 MB)