Product Name: USB 2.0 to RS232 4 Ports Converter
Product Model: CVT-RSC-606091
Description:

Full compliance with the USB specification v2.0
Comptible to USB specification V1.1 and V1.0
Support up to 4 RS232 Serial interface
USB signal VCC, DATA+, DATA-, GND
RS-232 signal RX, TX, RTS, CTS, DTR, DSR, DCD, RI, GND
Over 12Mbps data transfer rate
Baud rate 300-115200bps, automatic rate sensing
Support Remote wake-up and power management
Support automatic handshake mode
Support external power supply
Static electricity and surging protection