A device, comprising: a cooling wall configured to couple to a computer rack to cool computing units contained in the computer rack, the cooling wall comprising: a main wall; coolant transport lines to receive and return coolant from a coolant source; a plurality of thermal bus bars each comprising an internal fluid flow path; and a plurality of dripless connectors, each dripless connector comprising a first connector portion coupled to one of the thermal bus bars and a second connector portion coupled to the coolant transport lines, each thermal bus bar being coupled to at least two of the plurality of dripless connectors to receive coolant from the coolant transport lines and return fluid to the coolant transport lines, wherein the plurality of thermal bus bars are coupled to the main wall and to the plurality of dripless connectors such that each thermal bus bar may be removed from the cooling wall independently of the other thermal bus bars without interrupting fluid flowing through the other thermal bus bars, wherein the second portion of each of the plurality of dripless connectors is configured to be translated in a direction perpendicular to the main wall to be disengaged from the respective first portion of the dripless connector when one of the thermal bus bars is being removed, and wherein the second portions of the dripless connectors are spring loaded such that after being disengaged, a spring is configured to translate the second portion of the dripless connector to shut a valve of the coolant transport lines. a cooling wall configured to couple to a computer rack to cool computing units contained in the computer rack, the cooling wall comprising: a main wall; coolant transport lines to receive and return coolant from a coolant source; a plurality of thermal bus bars each comprising an internal fluid flow path; and a plurality of dripless connectors, each dripless connector comprising a first connector portion coupled to one of the thermal bus bars and a second connector portion coupled to the coolant transport lines, each thermal bus bar being coupled to at least two of the plurality of dripless connectors to receive coolant from the coolant transport lines and return fluid to the coolant transport lines, a main wall; coolant transport lines to receive and return coolant from a coolant source; a plurality of thermal bus bars each comprising an internal fluid flow path; and a plurality of dripless connectors, each dripless connector comprising a first connector portion coupled to one of the thermal bus bars and a second connector portion coupled to the coolant transport lines, each thermal bus bar being coupled to at least two of the plurality of dripless connectors to receive coolant from the coolant transport lines and return fluid to the coolant transport lines, wherein the plurality of thermal bus bars are coupled to the main wall and to the plurality of dripless connectors such that each thermal bus bar may be removed from the cooling wall independently of the other thermal bus bars without interrupting fluid flowing through the other thermal bus bars, wherein the second portion of each of the plurality of dripless connectors is configured to be translated in a direction perpendicular to the main wall to be disengaged from the respective first portion of the dripless connector when one of the thermal bus bars is being removed, and wherein the second portions of the dripless connectors are spring loaded such that after being disengaged, a spring is configured to translate the second portion of the dripless connector to shut a valve of the coolant transport lines.