Thermaltake Power Supply 240-Pin 850 Power Supply W0319RU Thermaltake Tt TR2 RX 850W ATX 12V 2.2 Modular Power Supply Unit- W0319RU. Next generation four +12V rails(12V1, 12V2, 12V3, 12V4) supports high-end graphic card and PC system. Independent Voltage Circuit: offers