Check out SciFi Cube Object No 23566 Low Poly Shape Texture 3D model on CGTrader for $6. High-quality mesh by 3dmodelbase.
STL (Stereolithography, filesize: 600 KB), OBJ (OBJ, filesize: 1.16 MB), 3DS (3D Studio, filesize: 308 KB), C4D (Cinema 4D, filesize: 780 KB), FBX (Autodesk FBX, filesize: 9.5 MB)