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.