Compatible Huntress Corp models: T642. . Compatible Lexmark models: T : T640, T640dn, T640dtn, T640n, T640tn, T642, T642dn, T642dtn, T642n, T642tn, T644, T644dn, T644dtn, T644n, T644tn. . Comparable to Lexmark 64015HA and 64035HA. Same performance but...