DC5521 female to Micro USB male adapter with multifunctional applications, provides you with flexible and convenient charging solution to meet the charging needs of different devices You can use this adapter to connect chargers that originally could only use 5521 female connectors to various devices for charging, providing wider compatibility and flexibility Simple design, convenient insertion and removal, and no complex operation process, so it is plug and play Small, lightweight, and easy to carry, whether you are at home, in office, or travel, you can carry it with you for convenient charging Note: This adapter does not change the power supply voltage. Please make sure that the input power supply parameters are consistent with that of the interface device required. If inconsistent, there will be a risk of burning out the device. You shall take the consequences of incorrectly connecting high voltage to your device. Female: DC5.5mm*2.1mm / 0.22*0.08 inch Male: Micro USB Transmission Voltage: DC3-28V Plug Service Life: ≥10000 times Insulation Material: PVC flame-retardant material Operating Temperature: -50 ~ 56℃ Fixing Method: in-line Color: Black Shipping List 5.5/2.1mm DC to Micro USB Adapter x 4