USB Device Info is a free Android application developed by Infinity Grp. that allows users to see their connected USB device info from the app. This includes USB memory, mouse, keyboard, LAN (Ethernet) gender, and more. If a USB device is connected while the app is running, users may be able to see its information. However, it is important to note that if the Android version is lower than Marshmallow (6.0), some information may not be displayed. Its simple interface and easy-to-understand information make it accessible for users of all levels of expertise.