Xiaomi Redmi Note 4G is a smartphone that was launched in 2014, August with Android 4.2 (Jelly Bean) installed on it and also upgradable to Android 4.4.2 (KitKat). If you want to connect your device to a computer or flashing firmware on your device.
Xiaomi Mi4i is an Android handset that was launched in 2015, April with Dual sim mechanism and corning scratch-resistant glass technology. If you to tranfer files to your computer or flashing firmware on your deivce, then you need to download the Mi4i USB Drivers.
Xiaomi Redmi 1s is a smartphone that made an entry in the market back in 2014, May. The phone comes with Dual-Sim mechanism. If you are looking for your device drivers, then you are in the right place. Just follow the guide and you will be able to download the required drivers.
Xiaomi Mi Mix 2 is a high end smartphone that was launched in 2017, September. The phone comes with IPS LCD capacitive touchscreen. In order to connect your device to a computer or flashing firmware on your device, you need to download the required drivers for your device.