GEREE 250W Boost Converter DC/DC 8.5-48V to 12-50V Output Step-up Module Mobile Power Supply Max 10A Input voltage 8.5-48V ,Output voltage 12-50V Output Current: 10A (MAX) Output constant Current: 0.2 - 8A Output Ripple: 2% (MAX) 20M-bandwidth Easy to drive 65W 90W dual-core notebook