Startech PS74ADF-SERIAL-CARD 4-Port Serial Pcie Card, RS232/422/485

The StarTech.com 4-Port Serial PCIe Card is a versatile and reliable solution for adding serial communication support to desktop computers or Small Form Factor systems. With independent configuration options for RS-232, RS-422, and 2/4-wire RS-485 standards, this card is perfect for various applications like point-of-sale terminals, PLCs, factory control, medical equipment, and more.

• On-board DIP switches for individual port operation in RS-232, RS-422, and RS-485 modes
• LED indicators for real-time monitoring of port activity
• Configurable power options (12V, 5V, or no power) via jumpers
• Support for legacy serial devices to prevent downtime and costly upgrades
• Standard and low profile brackets included for compatibility with different systems
• ASIX AX99100 Chipset, 16C450 and 16C550 UART compatible, Max Baud Rate 921.6 Kbps per port
• Hardware and software flow control for seamless data transmission
• Wide temperature operating range and ESD protection for durability and reliability