This is a 12V fixed-voltage power supply adaptor designed to meet the power specifications of your Behringer U-Phoria UMC1820 Audio Interface. Specifications: - Output voltage: 12V - Maximum output amperage compatible with your device - Correct output tip size and polarity - Thoroughly tested for compatibility and performance - 2-pin plug compatible with Type C (EU) wall sockets - Input voltage: AC 100-240V, 50/60Hz Additional features: - Compliant with applicable safety standards - Includes overvoltage, overcurrent, and short-circuit protection - RoHS and CE certified - Energy efficient design - Backed by a 2-year warranty: if the power supply fails within 2 years of purchase, it will be replaced