The structure of the title compound, alternatively called bis(mu-tetramethyldistibinediyl) bis(tetracarbonylchromium), [Cr2Sb4(CH3)(8)(CO)(8)], consists of two Me4Sb2 bridging units between Cr(CO)(4) complex fragments. The centre of the molecule is located on a special position of 2/m symmetry. This is the first characterized Sb4Cr2 heterocycle.