Supports standard SFX form factor and ATX via included bracket450W Continuous power output at 50?? temperature rated for 24/7 operation (V 2.0 )450W Continuous power output at 40?? temperature rated for 24/7 operation (V 3.0 )80 plus Bronze level efficiency (82%85% efficiency at 20%100% loading)Class-leading single +12V rail with 36aSilent running 80mm fan (V 2.0 )Silent running 92mm fan (V 3.0 )