• 4 high-speed RS-232 serial ports with data transfer rates up to 921.6 Kbps
• Includes disconnect dongle cable
• 256-byte deep FIFO for each transmitter and receiver
• Automatic out-of-band hardware flow control using Tx/Rx/RTS/CTS/DSR/DTR/DCD/GND
• Provide RS-232 serial ports with 5V or 12V power output through COM pins 1 or 9
• Built-in SATA power socket to obtain efficient DC power from the system
• Built-in ±15KV ESD protection for all serial signals
• Supports automatic hardware flow control and automatic software flow control to reduce CPU load
• Compliant with PCI Express Base Specification Revision 2.0
• Native single-chip, single-channel PCI Express

Specification:

• Chip: AX99100
• Interface standard: 4 RS232 standard serial ports, DB9 pins
• Communication rate: Supports up to 920.6KBPS communication rate
• Slot: Can be used for PCI-E slots of different lengths of X1 X4 X8 X16
• Powered serial port: Set the jumper to supply 5V or 12V to the serial port pin 1 or pin 9
• Operating system: Windows 11/10/8.1/8/7/VISTA/XP2003-2008 32/64-BIT, Linux