EXSYS EX-41384 PCI 4-Port RS-232 Serial Card with Low Profile Bracket

The EXSYS EX-41384 stands out by offering four independent RS-232 ports on a single PCI card, each with a 128-byte FIFO buffer and data rates up to 921.6 Kbps. This makes it a practical choice for industrial PCs, point-of-sale systems, or any setup that needs multiple legacy serial devices without sacrificing a slot per port.

Highlights

• Four RS-232 serial ports via a single PCI slot
• 16C950 compatible UART with 128-byte FIFO per port
• Supports data rates up to 921.6 Kbps
• Includes low profile bracket and fan-out cable (HD44 to 4x DB9 male)
• Works with 3.3V and 5V PCI buses

In daily use

The card installs in any standard PCI slot and provides four DB9 male connectors through the included fan-out cable. Hardware and software flow control, configurable data bits (5-8), stop bits (1, 1.5, 2), and parity options (even, odd, none, mark, space) ensure compatibility with a wide range of serial peripherals. IRQ sharing reduces resource conflicts in multi-card systems. The low profile bracket allows installation in slim desktop or rackmount chassis.

Full specifications

• Interface: PCI 32-bit, 33MHz, compliant with PCI 2.1/2.2
• Ports: 4x RS-232, DB9 male via fan-out cable
• UART: 16C950 compatible, 128-byte FIFO per port
• Max data rate: 921.6 Kbps per port
• Flow control: Hardware (RTS/CTS), Software (XON/XOFF)
• Data bits: 5, 6, 7, 8
• Stop bits: 1, 1.5, 2
• Parity: Even, Odd, None, Mark, Space
• Bus voltage: 3.3V / 5V PCI
• IRQ sharing: Yes
• Operating temperature: 0°C to 70°C
• Included accessories: Low profile bracket, fan-out cable (HD44 to 4x DB9)

Final note

With broad OS support including Windows and Linux, the EX-41384 is a dependable way to add multiple serial ports to legacy and modern systems alike.