Elecom USB Charger EC-ACD04 中古 (Used) 10 Ports, Condition: Defective Regarding output, 1 port supports 5V2.4A (12W), with a total output of 60W. Power has been confirmed to be supplied to all ports. Defective: This product emits coil whine when a USB device is connected. Please refrain from purchasing if you are sensitive to noise. Supports vertical placement. Rubber non-slip pads are on the front and back. Please check the product details on the website, etc.