Features: USB to 5.5MM x 2.1MM interface, easy to use, plug and play. Suitable for low-power devices, supporting 5V boost to 12V. Made of high quality materials, safe, reliable and durable. Suitable for LED desk lamps, routers, modems, switches, walkie-talkies, cameras, attendance machines, electronic dogs, driving recorders, navigation, etc. This boost line is compact and lightweight, easy to carry and store. Specifications: Interface: USB to 5.5MM x 2.1MM Input Voltage: 5V Output Voltage: 12V Applicable Equipment: 12V router, cat, switch, walkie-talkie, camera, attendance machine, electronic dog, driving recorder, navigation, etc. Package List: 1 x 5V to 12V Line Note: This product is only a boost line, it does not generate energy itself, so you need to confirm whether the input (power) power (voltage x current) is greater than the output (load) power before use.1USB to 5.5MM x 2.1MM interface, easy to use, plug and play. 2Suitable for low-power devices, supporting 5V boost to 12V. 3Made of high quality materials, safe, reliable and durable. 4Suitable for LED desk lamps, routers, modems, switches, walkie-talkies, cameras, attendance machines, electronic dogs, driving recorders, navigation, etc. 5This boost line is compact and lightweight, easy to carry and store.