Do you really know what is behind that conference room charger? They could have it connected to a server that will have total access to all the contents on your phone. Public chargers typically are backed by a server to monitor usage time and duration. It also has access to everything on your phone. Mic-lock USB-A 3.0 can charge without compromising security and quickly at maximum of 50V/5A! USB Power Lines are only connected to ensure that your data is not accessed by another computer or server and Filters only power to your smartphone or other devices. Compatible with Apple PD18W, Samsung AFC, QC2, PD2.0(5v/3A) 15V/2A, 9V/2AFCP, SFC Charging Protocols and Inputs and also works with a standard USB cable (not included).