Giới thiệu Feature Interface: DR44 Female x 1 for RS232x4 port; 32 bit Universal PCI bus, Signal RS-232: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS,RI, Serial support: 5v input/12v output and RI input Power supply: PCI bus or ATX power Power output:5V/1A or 12V/1A Baud rate: 300bps-921.6Kbps Data Bit: 5,