... MCH-302B DC Power Supply: 1.DC-30V/2A single variable output 2.w/ 5V 2A fixed output 3.Overall protection 4.CE ... Approval DC power supply, DC-30V/2A, single output, Model MCH-302BSpecifications: SpecificationVoltage0 to Described Continuously ... without prior notice. MCH-302B dc power supply,0-30V/2A continuously variable single output, w/ 5V2A fixed output