Check out SciFi Cube Object No 42524 Low Poly Shape Texture 3D model on CGTrader for $6. High-quality mesh by 3dmodelbase.
STL (Stereolithography, filesize: 1.61 MB), OBJ (OBJ, filesize: 3.29 MB), 3DS (3D Studio, filesize: 845 KB), C4D (Cinema 4D, filesize: 1.51 MB), FBX (Autodesk FBX, filesize: 10.1 MB)