In the title mol-ecular salt, (C(10)H(16)N)(2)[CuBr(4)], the Cu(II) ion adopts a squashed tetra-hedral geometry with Br-Cu-Br angles varying between 99.29 (3) and 132.53 (3)°. In the crystal, the components are linked by C-H⋯Br inter-actions, thereby generating a three-dimensional network.