Adding USB functionality to your Arduino projects used to be a pain, but thankfully, the V-USB project came along and gave your ATMEGA328 the ability to control the USB lines directly and mimic sim… ...

The idea early on was to leverage existing Arduino libraries to connect with a standard USB mouse, specifically, the hardware would take the form of an Arduino Mega 2560 with a USB Host Shield.

Approx 70% smaller footprint, additionally includes RJ45, USB-A3, USB-B3, USB-B, USB-Micro3, touch screen menu that enables manual selection of ports to do a deeper diagnosis of faulty cables.” ...