EXSYS EX-44088 2-Port RS-232 PCI Serial Adapter Card with Low Profile Bracket

Add two RS-232 serial ports to a desktop PC through a PCI slot with the EXSYS EX-44088. This card is used by system integrators and IT technicians to connect legacy serial devices such as point-of-sale terminals, industrial controllers, or laboratory instruments to modern computers. It fits standard and low-profile cases thanks to the included low-profile bracket.

Key specifications

• Host Interface: PCI
• Number of Serial Ports: 2
• Serial Port Standard: RS-232
• Connector Type: 2x DB9 Male
• Chipset: Oxford OX16C952
• Max Data Transfer Rate: 921.6 Kbps (per port)
• FIFO Buffer Size: 128-byte (per port)
• PCI Specification Compliance: PCI Local Bus Specification 2.1/2.2/2.3
• Bus Width: 32-bit
• Bus Speed: 33 MHz
• Operating System Support: Windows 98/ME/NT/2000/XP/Vista/7/8/10 (32/64-bit), Linux, DOS
• Flow Control: Hardware (RTS/CTS), Software (XON/XOFF)
• Parity: Even, Odd, None, Mark, Space
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Low Profile Support: Yes (Low Profile Bracket included)
• Plug & Play: Yes
• IRQ Sharing: Yes

Why choose it

The EX-44088 provides a reliable way to expand serial connectivity on systems that lack native COM ports. The Oxford OX16C952 chipset ensures stable performance, and the 128-byte FIFO buffer reduces CPU overhead during high-speed transfers. The included low-profile bracket makes it suitable for slim desktops and industrial PCs.

Ideal use cases

• Connecting legacy serial devices to a modern PC
• Adding COM ports to point-of-sale systems
• Industrial automation and control applications
• Laboratory equipment interfacing

Good to know

The card supports a wide range of operating systems, including older Windows versions and Linux, making it versatile for mixed environments. It features automatic IRQ sharing and Plug & Play for easy installation.