EXSYS EX-44354 4-Port PCIe RS-232 Serial Card with Low Profile Bracket, FTDI Chipset

Add four RS-232 serial ports to a desktop or industrial PC with the EXSYS EX-44354. This PCI Express x1 card uses an FTDI chipset for reliable communication with legacy devices such as barcode scanners, CNC machines, laboratory instruments, and point-of-sale terminals. The standard-profile bracket is installed, and a low-profile bracket is included for slimline cases.

Key specifications

• Host interface: PCI Express x1
• Output interface: RS-232
• Serial ports quantity: 4
• Serial interface type: DB9 male
• Chipset: FTDI
• Baud rate: up to 921.6 Kbps per port
• 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)
• FIFO buffer: 128-byte transmit, 256-byte receive
• ESD protection: 15KV on all RS-232 signals
• Operating temperature: 0°C to 70°C
• Storage temperature: -20°C to 85°C
• Windows and Linux support

Why choose it

The FTDI chipset ensures broad driver compatibility and stable performance across Windows and Linux. Four independent ports allow multiple serial devices to run simultaneously without conflicts. The included low-profile bracket makes this card suitable for compact desktops and 2U rackmount servers.

Ideal use cases

• Connecting legacy RS-232 equipment to modern computers
• Industrial automation and control systems
• POS terminals and barcode scanners
• Scientific and laboratory instruments
• Multi-port serial device servers

Good to know

The card is powered directly from the PCIe bus, so no additional power connector is needed. It supports data rates up to 921.6 Kbps per port, making it suitable for high-speed serial devices. The 15KV ESD protection helps prevent damage from electrostatic discharge in harsh environments.