We present SUSY_FLAVOR ¿ a Fortran 77 program that calculates important leptonic and semi-leptonic low-energy observables in the general R-parity conserving MSSM. For a set of input MSSM parameters, the code gives predictions for the View the MathML source, View the MathML source, View the MathML source and View the MathML source mixing parameters; B¿Xs¿, Bs,d¿l+l-, View the MathML source and View the MathML source decay branching ratios; and the electric dipole moments of the leptons and the neutron. All these quantities are calculated at one-loop level (with some higher-order QCD corrections included) in the exact sfermion mass eigenbasis, without resorting to mass insertion approximations. The program can be obtained from http://www.fuw.edu.pl/susy_flavor.