READ FIRST! NEW Original OEM Genuine Inogen ProductOnly AC Power Supply for Inogen One G4/G3 External Battery Desk Charger BA-403 & BA-303(This power supply NOT FOR OXYGEN Concentrator)Only pictured items shippedThis is a Power Supply replacement for a missing or a defective one for BA403 BA-30319V 3.16A 60W Ask before buying if this item is compatible with your application20% restocking for wrong order’s Returns! Power Cord included