The Thermaltake Xpressar RCS100 Micro Refrigeration Cooling System is similar in concept to the VapoChill Vapor Phase-Change Cooling systems. Thermaltake’s approach differs by utilizing a DC Inverter micro compressor for cooling the PC. Vapor-compression refrigeration has been the predominant method for air-conditioning large public buildings, residences, hotels, hospitals, theaters, restaurants, and vehicles. Thermaltake claims to be the first company to use this design for the PC. The system circulates a liquid refrigerant to absorb and remove heat from the area to be cooled and neutralizes the heat elsewhere. The Xpressar RCS100 cools a CPU 20 degrees lower than liquid cooling. Thermaltake’s Xpressar RCS100 is also equipped with a custom controller to prevent condensation.