SIZE : the circuit board is only 3.1cm X 1.8cm.
 This product supports 3.3V and + 5V compatible
 USB     TO    TTL, RS232,  RS485,  
  TTL CP2102   TO  USB , RS232,  RS485
High-speed communication: baud rate up to 2Mbps.
Description:
Six in ONE    Multi-functional Convert interface module
USB to TTL
USB to 232
USB to 485
TTL to 232
TTL to 485
232 to 485
All in one  , USB, TTL, RS232, RS485
