Two power sockets for cooling boxes or devices that are suitable to be operated by 12-24 volt. Power USB socket 12-24 V DC / 5 V DC, 3,000 mA with integrated power voltage converter. For charging and operating sat navs, mobile phones, smart phones, digital cameras, E-Book-Reader and devices that are suitable for charging by 5 Volt USB. Fastening by two screws. Pre-assembled cable connection approx. 15 cm.