FeaturesDC Laptop Car Adapter Charger Cord with USB charging portOutput - 19V 4. This Adapters are a portable power source for when you are on the go, at home or office. This adapter converts AC power into the DC power required by your device. Super Power Supply 010-SPS-08140 DC Laptop Car Adapter Charger Cord With USB Charging Port This adapter has been validated and tested to ensure it will work with your device.