EXSYS EX-1331VIS 1-Port RS-232 PCI Express Serial Adapter Card with ASIX AX99100 Chipset, 921.6 Kbps, Low Profile

Experience lightning-fast serial communication with the EXSYS EX-1331VIS, a PCI Express x1 adapter card delivering a maximum baud rate of 921.6 Kbps. Built around the ASIX AX99100 chipset, this card adds a single RS-232 port to your desktop or server, ensuring reliable connectivity for legacy devices, industrial equipment, and POS systems.

Overview

The EX-1331VIS is a high-performance serial interface card that plugs into any standard PCI Express slot. It provides one DB9 male RS-232 port with full modem control and hardware/software flow control. The card supports data rates from 50 bps to 921.6 Kbps, making it suitable for a wide range of applications—from simple console connections to high-speed data acquisition. A 128-byte FIFO buffer on both transmit and receive paths reduces CPU overhead and prevents data loss during bursts.

What stands out

• ASIX AX99100 chipset ensures broad OS compatibility and stable performance.
• ESD protection up to 15KV (Human Body Model) safeguards against electrostatic discharge.
• Includes both standard and low-profile brackets for flexible installation in slim or full-size cases.
• Supports Windows, Linux, and macOS—no driver hassles across platforms.
• Backward compatible with PCI Express 1.1 and higher slots.

Technical details

• Host Interface: PCI Express x1 (PCIe 1.1, backward compatible)
• Serial Ports: 1 x RS-232, DB9 male connector
• Chipset: ASIX AX99100
• Maximum Baud Rate: 921.6 Kbps
• FIFO Buffer: 128-byte transmit / 128-byte receive
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Parity: Even, Odd, None, Mark, Space
• Flow Control: Hardware (RTS/CTS), Software (XON/XOFF)
• ESD Protection: 15KV (Human Body Model)
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -20°C to 85°C
• Certifications: CE, FCC, RoHS
• Included Accessories: Low-profile bracket, driver CD/download link

Our verdict

The EXSYS EX-1331VIS is a reliable, high-speed serial adapter that bridges legacy RS-232 devices with modern PCIe systems. Its robust design, wide OS support, and included low-profile bracket make it an excellent choice for industrial, commercial, and embedded applications.