Download A4Tech USB Driver compatible with all smartphone models.

An A4Tech USB driver is a small piece of software that allows your computer to communicate with your A4Tech smartphone or tablet. This means you can transfer files between your device and your computer and use your A4Tech device for USB Tethering.Download A4Tech Driver. A4Tech USB Drivers work perfectly with all A4Tech devices running Android OS. Therefore, all lines of devices, new and old, are compatible with this latest A4Tech USB Driver.