SUNIX MIO6479A PCIe 2.0 Serial Parallel Adapter - 2x RS-232 DB9, 1x Parallel DB25

The SUNIX MIO6479A is a high-performance PCI Express 2.0 adapter that adds two RS-232 serial ports and one IEEE 1284 parallel port to your computer. Designed for industrial and commercial applications, it provides reliable connectivity for legacy peripherals such as printers, scanners, modems, and serial devices. The adapter features the ASIX AX99100 chipset, ensuring broad OS compatibility and stable data transfer.

Advantages

Expand your system with three additional ports using a single PCIe slot. The included standard and low-profile brackets allow installation in various chassis sizes. Hardware and software flow control ensure error-free communication, while the 128-byte FIFO buffer on each serial port prevents data loss.

Suitable for

• Connecting serial devices (barcode scanners, POS terminals, industrial controllers)
• Adding a parallel port for legacy printers or scanners
• Upgrading systems without native serial/parallel ports
• Embedded and industrial automation applications

Key specifications

• Interface: PCI Express 2.0 x1 (compatible with x2, x4, x8, x16 slots)
• Serial Ports: 2x RS-232 DB9 male
• Parallel Port: 1x IEEE 1284 DB25 female
• Serial Controller: 16C950 UART compatible
• Serial Data Rate: Up to 921.6 Kbps
• Serial FIFO: 128-byte transmit/receive per port
• Parallel Modes: SPP, EPP, ECP
• Parallel Data Rate: Up to 2.5 MBps (ECP mode)
• Chipset: ASIX AX99100
• Supported OS: Windows XP/Vista/7/8/10/11, Windows Server, Linux Kernel 2.6.x+, macOS
• Certifications: CE, FCC, RoHS
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -20°C to 85°C
• Humidity: 5% to 95% RH non-condensing

Recommendations

For optimal performance, install the latest drivers from SUNIX. This adapter is ideal for extending the life of legacy equipment in modern systems.