Seasonic B12 550W 80 Plus Bronze Wired Power Supply Key Features Fully wired power supply, all the wires you need are fully attached so that you are ready to go right out of the box A whisper-quiet 120mm sleeve bearing Smart and Silent fan 80 PLUS Bronze-certified efficiency for 82% efficiency or higher under typical loads Up to 45A on a single +12V rail Tonnes of heavy-duty protection to make sure your setup stays running at its best 5-Year warranty and support from Seasonic Overview Introducing the Seasonic B12 550W power supply, the efficient, quiet, and powerful unit you need for your next setup. The efficiency combined with Active Power Factor Correction, enables this power supply to lessen energy waste, which translates into savings on the costs of energy costs for its users. In addition to being greatly efficient, the B12 550W utilizes the LLC resonant converter design, and the industry’s leading Smart and Silent Fan Control (S2FC). The B12 550W includes a 120mm sleeve bearing fan generating quieter, near-silent operation and helps the PSU last longer. The fully wired design of this power supply allows your cables to be attached to the power supply for ease of installation and removal. It can be ready to use straight out of the box! This PSU features an 80 Plus certification, ensuring your power supply is not wasting power and turning it into excess heat. Under typical load, this power supply is 82% efficient or higher. Get reliable power and protection for years to come. Connections and Dimensions Connections:1 x ATX Connector 24-PIN (20+4)1 x EPS Connector 8-PIN (4+4)2 x PCIE Connectors 8-PIN (6+2)6 x SATA Connectors (2 x Cable)3 x Peripheral Connectors 4-PIN Dimensions: 150 x 140 x 86 mm