The AXAGON PCEA-S4N controller card adds four RS-232 serial ports with male DB-9 connectors to a desktop computer. It connects via PCI Express and uses the ASIX AX99100 chipset. The package includes low-profile brackets for installation in standard or low-profile computer cases.

• Type: PCIe controller
• Interface: PCI Express 2.0, compatible with PCI Express 1.0a / 1.1 / 2.1 / 3.0
• Bus: 1 PCIe lane (x1), compatible with x1 / x4 / x8 / x16 slots
• Bandwidth: 5 Gb/s
• Ports: 4 RS-232 serial ports with male DB-9 connectors
• Port placement: On the card bracket and on a separate bracket connected by a cable
• Chipset: ASIX AX99100
• UART: Compatible with 16C550 / Extended 16C550 / 16C950
• Baud rate: Up to 250 kBd
• FIFO buffer: 256 bytes for sending and receiving per port
• Word length settings: 5, 6, 7, 8 or 9 bits
• Parity settings: Even, odd, none, mark or space
• Stop bits: 1, 1.5 or 2
• Flow control: Xon/Xoff, hardware or none
• ESD protection: Over 15 kV for air discharge and 8 kV for contact discharge
• Features: Plug and Play, automatic IRQ and I/O address selection, COM port number reassignment, and advanced settings for 9-bit data transmission and custom baud rates
• Serial port signals: TXD, RXD, RTS, CTS, DTR, DCD, DSR and RI
• Operating systems: MS Windows XP / Vista / 7 / 8 / 8.1 / 10 and later, Windows Server 2003 / 2008 / 2012 / 2016 and later, and Linux kernel 2.6.11 and later
• Low-profile bracket: Included
• Package contents: PCI Express card with standard bracket, standard bracket with serial ports, low-profile brackets and multilingual guide