The Stealthburner PCBs, a compact and efficient toolhead solution. It includes two key components: The main toolhead PCB fits snugly into the Clockwork 2 extruder's wiring enclosure. The fan adapter PCB attaches seamlessly to the rear of the 5015 fan within the Stealthburner body. The LDO Stealthburner PCBs shares the same outline as hartk's design, but features a distinct circuit design. It ensures full compatibility with the original LDO Breakout PCB requiring only minimal cable modifications for upgrading from the old LDO Afterburner PCB. The PCBs are recommended to be used only with LDO kits to ensure compatibility.