Crystal structure, transport and magnetic properties of (EDS-TTF) 2 FeBr 4 (EDS-TTF: ethylenediselenotetrathiafulvalene) are reported. Between one-dimensional columns of donors and quasi square-lattices of FeBr 4 anions, close Br...Se van der Waals contacts and CH...Br type hydrogen bonds are observed. This salt shows high room-temperature conductivity and metal-insulator transition at ca. 250K (σ R T =400Scm - 1 , E A =380K). The magnetic susceptibility obeys the Curie-Weiss law (C=4.58emuKmol - 1 , Θ=-0.9K) without showing any magnetic transition down to 1.8K. The weak π-d interaction can be due to the small contribution of Se 4p orbitals to the HOMO of EDS-TTF.