This is USB to serial module that is based on the CH340G.
It is commonly used to debug various TTL serial devices, upgrade the firmware of routers,
and burn program onto Arduino Pro Mini, LilyPad Arduino directly.
– Operating Voltage: 5V.
– Logic Voltage: 5V.
– Serial baud rate: Up to 115200bps.
– Support USB1.1, USB2.0, USB3.0.
– USB to serial chip (CH340) supports XP, win7 / win8 32bits, 64bits, Linux