Seasonic SSP-300SUB - 300W Bronze Flex ATX Modular 1U power supply300W Flex ATX 1U 80Plus Bronze certified Low Noise Fan 2 Year Warranty Mounting bracket included SSP 300SUB is a 300W 1U Flex ATX power supply. As one of Seasonic's latest editions SSP 300SUB is the little brother of the more efficient established SSP 300SUG. Being Modular, SSP 300SUB is particularly well suited to applications where a custom cabling is required. This is a great benefit for reducing inventory whilst having the flexibility to have