Keep components powered with the Smart BX1 550W 80 PLUS Bronze Power Supply from Thermaltake . Featuring a non-modular design, this ATX power supply delivers 550W of power and utilizes a single +12V rail. Rated 80 PLUS Bronze, the BX1 550W can reach up to 88% efficiency, while a 120mm hydraulic bearing fan keeps noise low. In addition single motherboard and CPU connectors, the Smart BX1 550W also includes two PCIe, six SATA, and four 4-pin connectors. A floppy adapter is also present, connecting to one of the 4-pin peripheral connectors. Utilizing a sleeved design, the cabling is intended to make installation easy. The Thermaltake Smart BX1 550W 80 PLUS Bronze PSU features a lifespan of up to 100,000 hours.