USB to 5.5MM x 2.1MM Interface 5V to 12V Boost Line for Desk Lamps / Routers / Modems Features: Suitable for low-power devices, supporting 5V boost to 12V. Made of 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 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: