A compounder system , comprising: a pump head ; a vial puck configured to be attached to a vial containing a drug; a vial lift configured to remove the vial from a vial tray ; and a cartridge having: a plurality of controllable fluid pathways fluidly coupled to at least one diluent port and a receiving container port ; a pump component actuable by the pump head to pump a fluid within the plurality of controllable fluid pathways; a needle configured to couple the plurality of controllable fluid pathways to a vial containing a drug; and a bellows configured to surround the needle in an extended configuration and to be compressed to allow the needle to extend from the bellows into the vial , wherein the bellows forms a sealed cavity around the needle and the needle is disposed within the cavity when the bellows is in the extended configuration, the bellows comprising a dry disconnect mating area that includes a seal forming a distalmost boundary of the cavity configured to be pierced by the needle , characterized by the vial lift being configured to compress the bellows by pressing the vial puck attached to the vial against the bellows such that a tip of the needle extends through the seal of the bellows , the seal being a dry disconnect seal providing a leak free disconnect when the vial is removed from the needle . a pump head ; a vial puck configured to be attached to a vial containing a drug; a vial lift configured to remove the vial from a vial tray ; and a cartridge having: a plurality of controllable fluid pathways fluidly coupled to at least one diluent port and a receiving container port ; a pump component actuable by the pump head to pump a fluid within the plurality of controllable fluid pathways; a needle configured to couple the plurality of controllable fluid pathways to a vial containing a drug; and a bellows configured to surround the needle in an extended configuration and to be compressed to allow the needle to extend from the bellows into the vial , wherein the bellows forms a sealed cavity around the needle and the needle is disposed within the cavity when the bellows is in the extended configuration, the bellows comprising a dry disconnect mating area that includes a seal forming a distalmost boundary of the cavity configured to be pierced by the needle , characterized by the vial lift being configured to compress the bellows by pressing the vial puck attached to the vial against the bellows such that a tip of the needle extends through the seal of the bellows , the seal being a dry disconnect seal providing a leak free disconnect when the vial is removed from the needle . a plurality of controllable fluid pathways fluidly coupled to at least one diluent port and a receiving container port ; a pump component actuable by the pump head to pump a fluid within the plurality of controllable fluid pathways; a needle configured to couple the plurality of controllable fluid pathways to a vial containing a drug; and a bellows configured to surround the needle in an extended configuration and to be compressed to allow the needle to extend from the bellows into the vial , wherein the bellows forms a sealed cavity around the needle and the needle is disposed within the cavity when the bellows is in the extended configuration, the bellows comprising a dry disconnect mating area that includes a seal forming a distalmost boundary of the cavity configured to be pierced by the needle , characterized by the vial lift being configured to compress the bellows by pressing the vial puck attached to the vial against the bellows such that a tip of the needle extends through the seal of the bellows , the seal being a dry disconnect seal providing a leak free disconnect when the vial is removed from the needle . <EOS>