24W wall adapter power supply with 98% high efficiency, 100-250VDC input voltage, frequency 50-60Hz.

Specification

Dimension (mm)

Tips: How to Choose the Interface Size of AC Wall Adapter?
The wall mount AC adapter can convert the AC voltage from a standard wall socket to the DC voltage required by the established equipment. To determine whether the wall charger is suitable for the device, many factors need to be considered. Among them, the physical size of the charging interface is an important point. If the interface is not right, the product cannot be used.
There is no uniform standard for the physical size of the plug-in power adapter, but two sizes are more commonly used: 2.1 mm sleeve plug and 2.5 mm sleeve plug. Although the outer diameter of 2.1 mm and 2.5 mm bushing plugs are usually 5.5 mm, their lengths will be different. In addition to the common 2.1 mm and 2.5 mm plugs, there are a variety of other unusual sizes that may cause confusion and lead to the selection of inappropriate adapters.
There are two methods to help select the size of the existing adapter to be replaced. One method is to use a caliper; you can get a rough idea of ​​the diameter through the caliper, but it is very likely that you cannot measure exactly whether the inner diameter is 2.1 mm or 2.5 mm. This is due to the individual tolerances of the connectors. This method is relatively rough, it is easy to not measure the inner diameter of a special size, and there is no good method, so you need to carefully read all the documentation that comes with the existing adapter. You can find relevant documentation by recording the number on the existing adapter and searching in the search engine.
The voltage level and physical size of the bushing connector must fully meet the requirements, otherwise the device may be damaged, or the bushing plug may not match the device and cannot provide a safe electrical connection. There are many ways to find the size of the sleeve connector, but the best way is to read its documentation.