If we want Windows or Mac Computer to recognize our device when plugged in via USB cable then we have to install Moto X USB drivers packaged in Motorola Device Manager (MDM), during the USB drivers installation process the MDM will also install the ADB drivers. Once the driver is installed properly, then we will be able to mount the phone’s internal storage and see the entire contents on a PC, other than that we can also perform file operations such as copy, paste, cut or delete.
Besides it useful for exchanging data between smartphone and PC, Moto X USB and ADB drivers is also a main requirement to be able to use RSD Lite app to restore our device’s software to stock or to run adb and fastboot commands (which is sometimes used to run the one-click root tool , unlocking bootloader, etc.).
As we know Motorola does not include a CD Driver in the box when we bought it, inside it there is only a USB cable, charger, SIM removal tool and user manual. So we should download Moto X USB and ADB drivers for Mac or Windows at their official website. Once downloaded, then install the MDM file (MotorolaDeviceManager_2.3.9.exe for Windows and Mac MDM_Installer_2.1.8.dmg for Mac iOS). After installation is completed, now connect the device to a PC and the MDM will quickly take over the installation of the driver, this can be noticed in Windows notification area on the lower right corner, there will be a tiny MDM logo.
Especially for those of you who are having problems, for example: unable to perform the data transfer on the Moto X even though the drivers are installed properly, then you can try to enable USB debugging. This issue, often encountered on Motorola devices running Android 4.1 (Jelly Bean) or later.