Sunix SER5056A-B PCI 4-Port RS-232 Serial Card with Low-Profile Bracket

The Sunix SER5056A-B is a high-performance PCI 4-port RS-232 serial card designed for industrial and commercial applications requiring reliable serial connectivity. Compliant with PCI 2.2, this card features four DB9 male connectors and supports baud rates up to 921.6 Kbps, making it ideal for connecting serial devices such as modems, printers, scanners, and POS systems. The included low-profile bracket ensures compatibility with both standard and small form factor systems.

Advantages

With a 128-byte FIFO buffer per port and hardware/software flow control, the SER5056A-B delivers stable data transfer without loss. The 16C950-compatible UART chipset (e.g., Oxford OX16C954) ensures broad OS support, including Windows, Linux, DOS, and FreeBSD. Its plug-and-play installation simplifies setup, while CE, FCC, and RoHS certifications guarantee compliance and safety.

Suitable for

• Industrial automation and control systems
• Retail POS terminals and barcode scanners
• Serial device networking and legacy equipment integration
• Embedded systems and server management

Key specifications

• Interface: PCI 2.2, 32-bit, 33 MHz
• Ports: 4 x RS-232 serial (DB9 male)
• Max baud rate: 921.6 Kbps
• FIFO: 128 bytes per port
• Data bits: 5, 6, 7, 8; Stop bits: 1, 1.5, 2; Parity: None, Even, Odd, Space, Mark
• Flow control: Hardware (RTS/CTS), Software (XON/XOFF)
• Operating temperature: 0°C to 70°C
• Form factor: Standard profile with low-profile bracket included
• Certifications: CE, FCC, RoHS

Recommendations

For optimal performance, ensure your system has an available PCI slot and install the latest drivers from Sunix. This card is an excellent choice for expanding serial connectivity in both legacy and modern environments.