This 4-way adapter with USB port charges 4 devices at once so you can keep multiple devices powered while on-the-go. Perfect for traveling for business or pleasure. Whether you have multiple devices for work or more than one passenger that needs to charge their phone, this adapter keeps everyone happy and all your devices running. Do not exceed 10 Amps max capacity for all devices. Keep it in the cab of your truck or stored in the camper for convenient off-grid power when needed. A great van life accessory too. One auto accessory that lets you charge multiple devices like smartphones and GPS devices during long hauls when multiple devices need to be charged to stay connected and entertained. This adapter consolidates all of your charging needs into one central location so your car interior and the cab of a truck can be more organized. This can reduce clutter and too many wires from multiple charging sources. Charge your devices as needed and have access to important information and communication tools like your email or messaging apps.