StarTech 2-Port PCI Express Serial Card PCIe to RS232 DB9 16C1050 UART with Standard and Low Profile Brackets

The StarTech 2-Port PCI Express Serial Card allows you to add two high-performance RS232 DB9 serial ports to your desktop computer or small form factor system via a PCIe slot. Designed to connect legacy serial peripherals to modern computer systems, this PCIe to RS232 card features a reliable 16C1050 UART chipset, 256-byte FIFO buffering, and data transfer rates up to 921.6 Kbit/s per port. It includes interchangeable standard and low profile brackets, making it versatile for full-height or slim computer cases, and supports COM retention for seamless device reconfiguration.

Advantages

This serial expansion card provides a dependable solution for integrating older hardware into contemporary computer setups without sacrificing performance. The inclusion of dual DB9 ports enables simultaneous connection of two serial devices with bi-directional data transmission. The advanced 16C1050 UART architecture with a generous 256-byte FIFO buffer ensures smooth data flow and prevents data loss during intensive tasks. Furthermore, built-in LED indicators offer real-time activity monitoring, while the support for both Windows and Linux operating systems guarantees broad system compatibility.

Suitable for

• Connecting barcode scanners, receipt printers, and point-of-sale equipment
• Integrating industrial control systems, automation hardware, and PLCs
• Interfacing with medical devices, laboratory instruments, and scientific equipment
• Maintaining legacy logistics, shipping, and freight management systems

This card may not be suitable for computers lacking an available PCI Express slot or systems running operating systems other than Windows or Linux. It is also not designed to connect non-serial peripherals or devices requiring parallel interface connections.

Key specifications

• Host interface: PCIe 2.0 x1
• Output interface: Dual RS232 DB9 male serial ports
• Chipset: Asix AX99100 and ZT3243LFEY
• UART type: 16C1050
• FIFO buffer: 256 bytes per port
• Maximum baud rate: 921.6 Kbit/s
• Form factor: Full-height and low-profile brackets included
• Color: Yellow

To install the StarTech 2-Port PCI Express Serial Card, power down your computer, unplug it from the electrical outlet, and open the computer case. Insert the card firmly into an available PCI Express x1 or higher slot and secure the bracket to the chassis using the appropriate screw. Close the computer case, reconnect power, and boot up your system. Install the required drivers for your operating system if they do not install automatically, and connect your serial peripheral cables to the external DB9 ports.

What to consider before purchase

• Verify that your computer motherboard has an available PCI Express slot
• Check compatibility with your specific version of the Windows or Linux operating system
• Confirm whether your serial peripherals require standard height or low profile brackets
• Ensure your connected devices utilize standard RS232 DB9 serial communication

Usage recommendations: For optimal performance and stable communication, ensure that drivers are kept up to date according to your operating system version. Secure serial cables properly using the screw-locking mechanism on the DB9 ports to prevent accidental disconnections in industrial or high-traffic environments.