InLine® PCIe Interface Card, 2x RS-232 + 1x Parallel Port

Expand your desktop's connectivity with this PCI Express x1 interface card, adding two RS-232 serial ports and one IEEE 1284 parallel port through a single expansion slot. The MosChip MCS9901CV-AA controller ensures reliable data transfer with 16-byte FIFO buffers and baud rates up to 230.4 Kbps on serial channels, while the parallel port supports EPP/ECP modes for legacy printers and devices.

Advantages

This card brings legacy port support to modern systems, enabling connection of industrial equipment, POS terminals, and older peripherals. The included low-profile bracket allows installation in slim desktops, and PCIe x1 compatibility ensures broad motherboard support. Plug-and-play installation with Windows and Linux drivers simplifies setup, while IRQ sharing and PCI Power Management 1.2 compliance enhance system stability and energy efficiency.

Suitable for

• Industrial automation and control systems requiring RS-232 communication
• Point-of-sale (POS) setups with serial receipt printers or barcode scanners
• Legacy parallel printers, scanners, or security dongles
• IT professionals and system integrators needing reliable multi-port expansion
• Users with slimline or small form factor PCs thanks to the low-profile bracket

Key specifications

• Host Interface: PCI Express x1 (PCIe 1.0a)
• Ports: 2x RS-232 (DB9 male) + 1x IEEE 1284 parallel (DB25 female)
• Chipset: MosChip MCS9901CV-AA
• Serial Data Rate: Up to 230.4 Kbps
• Parallel Data Rate: Up to 1.5 Mbps (ECP mode)
• FIFO Buffer: 16-byte transmit/receive per serial port
• Operating System Support: Windows 7/8/10/11, Linux Kernel 2.6.x and later
• Form Factor: Standard profile with included low-profile bracket
• Power: PCI Express bus powered (no external power needed)
• Compliance: PCI Power Management 1.2, Plug & Play, IRQ sharing

Recommendations

Ideal for upgrading legacy-free desktops to support essential serial and parallel devices. The dual RS-232 ports are perfect for multi-device industrial applications, while the parallel port ensures compatibility with older printers. The included low-profile bracket makes it a versatile choice for both standard and slimline systems.