While the Xiaomi 14 model supports 5 Gbps data transfer rates, the Xiaomi 14 Pro model supports 10 Gbps data transfer rates as stated in the device features.
It is noteworthy that the USB-C interface on these smartphones can also transmit video signals. According to Xiaomi Store support on JD.com, the USB-C interface on Xiaomi 14 series smartphones supports video signal transfer with DP1.2 transfer feature.
Although the specific resolution for video transfer is not provided by the support, this feature allows smartphones to be connected directly to USB-C displays. Users can even connect a keyboard and mouse to the phone.
Source: Ferra

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