The Apevia Tfx Pfc400w 400W ATX Power Supply is a reliable system power device designed for computer enthusiasts. With a maximum power output of 400W and a compact TFX form factor, this power supply is ideal for providing stable and efficient power to your computer system. The full range active PFC feature ensures efficient power conversion, making it a practical choice for those looking to enhance the performance of their PC. With free express shipping available in the United States, this power supply is a convenient and efficient choice for your computing needs.