Universial USB to 4 Port RS232 Converter

A quick and easy way to expand your PC's port count and to adapt serial devices to
your USB PC. Edgeport USB-to-Serial converters are intelligent expansion units
that connect to a PC, thin client or server via a USB port. They provide one, two,
four, eight or sixteen serial ports, as well as parallel and USB ports on some models.Compatible
with most Windows operating systems. No IRQ, I/O address, DMA or
memory address requirements. Serial port models require no external power. Models
with USB output ports use an included power supply. 

Features 

1, Plug and play compliant, hot swappable 
2, Add 1 to 4 serial ports 
3, Multi-interface RS-232 model 
4, USB 1.0 and 1.1 compliant; USB 2.0 backwards compatible 
5, USB port powered- no external power needed on USB to serial models 

Standard Accord USB1.1 or 2.0, EIA RS232 standard 
USB signal VCC, DATA+, DATA-, GND, FG 
RS232 signal RX, TX, RTS, CTS, DTR, DSR, DCD, RI, GND 
Asynchronism, point to point or multi-point 
Band rate 300-115200bps, automatic test signal rate 
Transmission RS232 side 15M, USB side less than 5M 
600W sugre protection, 15KV static electrity protection 
USB side type A interrface female, RS-232 side DB-9 male 

Working temperaature -20 to 60 
Storage temperature -25 to 85 
humidity Relatively humidity 5% to 95% 
Input powered Powered from USB or 5V external powered 
consumption Static consumption less than 80mA,dynamic average consumption less than
150mA 

L*W*H 245mm*90mm*38mm 
Shell Iron 
Color Blue 
Weight 500g