The Redmi K20 Pro and K30 Pro tail inserts are not universal. The two phones have different tail pins, so their tail pins cannot be used interchangeably.
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Redmi K20 Pro uses a USB Type-C interface, which is currently one of the more common types of mobile phone tail plug. The Redmi K30 Pro uses a USB Type-C 2.0 interface. Although they are both USB Type-C interfaces, they cannot be directly interoperable due to version and design differences.
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If you need to use a tailplug attachment or charger for a specific phone model, it is recommended to select the corresponding product according to your phone model to ensure compatibility and normal use.
The Redmi K20 Pro and K30 Pro are not versatile. The K20 Pro uses USB Type-C 2.0, while the K30 Pro uses USB Type-C 3.1. Although the size and shape of the two are similar, their electrical signal transmission standards, rates and other aspects are different. Therefore, the K20 Pro's tail plug cannot be inserted into the interface of the K30 Pro, and the other way around, the K30 Pro's plug cannot be inserted into the K20 Pro. In order to ensure the normal operation of the equipment, the plug or data cable suitable for the relevant specification standards should be selected.