USB 2.0 TO 4-port RS-232, 4 RS232 DB9 port,Maximum rate up to 4*1.5Mbps Glod-plated interface

USBSupport 4 devices at the same timeUSB specification 2.0 compliantSupports full speed high speedUSB 1.1 and USB 2.0 compatibleSupports RS232 serial interface DB9Supports over 3Mbps data transfer rateSupports remote wake-up and power managementSupport 1.8V, 2.5V, 3.3V, 5.0VLength: 1.8m 

4 port USB RS232,USB 2.0 TO 4-port RS-232