Reminder: Some buyers of this product do not respond to it. Please confirm whether the interface of your product has a DC outer diameter of 5.5mm and an inner diameter of 2.1mm before buying. Secondly, if it is used for mobile power to connect to the router, pay attention to the router and Whether the voltage of the mobile power supply is the same, because the voltage of some routers on the market is 9-12V, and the mobile power supply is generally 5V, so the voltage may be too low to be practical. The voltage problem is not a line problem! The line itself has no boost function! Please confirm the size and voltage of the interface before buying, so as to avoid unnecessary trouble when buying the wrong one!
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