Suitable for 120mm cold row of holes to expand stent TCBJ-G and TCBJ-P, with the expansion through sub-mount, fixed installation to achieve DDC type pumps. The stent fully integrated DDC pumps each class and each installation pitch angle of installation needs, with a plurality of mounting holes, can be achieved with BARROW-based DDC cooling kit DDC pump to achieve 360-degree horizontal and vertical installation 4 angle of 90 degrees to install more installation requires seed position. Universal M4 screw mounting and fixing me with BARROW pump integrated pump cover can achieve total installed pump + tank