EXSYS EX-43362 2-Port RS-232 PCI Express Serial Controller Card

PCI Express serial controller card with dual RS-232 ports delivers reliable high-speed connectivity for industrial and legacy devices. The EX-43362 leverages the ASIX AX99100 chipset to provide two independent 921.6 Kbps serial channels over a single PCIe x1 lane, ensuring smooth integration with modern systems while maintaining compatibility with existing serial equipment.

Advantages

This card offers native PCI Express connectivity, eliminating the need for USB-to-serial adapters and their associated latency. Each port features a 256-byte FIFO buffer to reduce CPU overhead during sustained data transfer. The included low-profile bracket allows installation in slim desktops and 2U rackmount chassis, while 15KV ESD protection safeguards against electrical surges. Hardware and software flow control options provide flexible handshaking for diverse peripherals.

Suitable for

• Industrial automation systems and PLC programming
• Point-of-sale terminals and barcode scanners
• Legacy laboratory instruments and medical devices
• Network equipment console management
• Building automation and security control panels

Key specifications

• PCI Express x1 interface (Base Spec 1.1, backward compatible)
• Two RS-232 serial ports with DB9 male connectors
• ASIX AX99100 controller chipset
• Maximum data transfer rate: 921.6 Kbps per port
• 256-byte FIFO buffer per port
• Supports 5/6/7/8 data bits, 1/1.5/2 stop bits, and even/odd/none/mark/space parity
• Hardware (RTS/CTS) and software (XON/XOFF) flow control
• 15KV ESD protection
• Operating temperature: 0°C to 70°C; storage: -20°C to 85°C
• Certifications: CE, FCC, RoHS

Recommendations

For system integrators and IT professionals requiring dependable serial expansion, the EX-43362 provides a robust, standards-compliant solution. Its broad OS support—including Windows 11 through XP, Windows Server, Linux, and macOS—ensures compatibility across mixed environments. Pair with high-quality shielded serial cables to maintain signal integrity in electrically noisy installations.