4-PORT SERIAL PCIE CARD RS232/422/485

StarTech.com 4-Port Serial PCIe Card – PS74ADF-SERIAL-CARD
Add powerful multi-protocol serial connectivity to your system with the StarTech.com 4-Port Serial PCIe Card. Designed for flexibility and industrial-grade reliability, this card features four DB9 ports that independently support RS-232, RS-422, or RS-485 connections—easily selectable via onboard DIP switches.
Perfect for integrating with a wide range of commercial and industrial equipment, it’s ideal for point-of-sale systems, factory automation, medical devices, sensors, and more. Each port supports up to 921.6Kbps data transfer rates and includes ESD protection and LED indicators for real-time transmit/receive monitoring.
Offering advanced configurability, the card supports 12V, 5V, or no power (RI) on pin 9, selectable per port via onboard jumpers, with auxiliary SATA power input. Whether you're building in a standard tower or a low-profile SFF system, this card ships with both standard and low-profile brackets for flexible installation.
Compatible with Windows and Linux systems, and supporting COM port retention, this PCIe card is built with an ASIX AX99100 chipset for long-term reliability and broad compatibility.

Features:

• 4-port DB9 PCIe serial card with support for RS-232, RS-422, and RS-485

• Per-port mode selection via DIP switches; LED indicators for each port

• 12V/5V/no power selectable on pin 9 (jumper-configurable); SATA power input

• Suitable for industrial, scientific, and commercial use cases

• Includes both standard and low-profile brackets for system flexibility

• Supports baud rates up to 921.6Kbps, parity modes, and COM port retention

• Compatible with Windows and Linux operating systems

Attributes:
MPN: PS74ADF-SERIAL-CARD
Model: PS74ADF-SERIAL-CARD
ASIN: B0CQ8S1MM8
Color: Black
Gender: Unisex
Dimensions: 4.8 in (L) x 4.3 in (W) x 0.6 in (H)
Weight: 58g