Check out SciFi Cube Object No 33439 Low Poly Shape Texture 3D model on CGTrader for $6. High-quality mesh by 3dmodelbase.
STL (Stereolithography, filesize: 1.76 MB), OBJ (OBJ, filesize: 3.6 MB), 3DS (3D Studio, filesize: 927 KB), C4D (Cinema 4D, filesize: 1.61 MB), FBX (Autodesk FBX, filesize: 10.1 MB)