This 300W Seasonic Flex-ATX power supply provides active PFC, an 80PLUS Gold certification and a variety of connectors for a broad range of applications. It is mainly suitable for use in very narrow 19" server cases with a height of 1U or mini ITX chassis which are flex ATX compatible. For installation in 1U chassis with only two mounting-holes on each side of the power-supply-opening, we offer an optional flex-ATX adapter plate.