BF-E804 PCIe to Serial 4Port
BF+ PCIe to Serial Card – 4-Port RS232 | Premium ASIX Chipset | High-Grade PCB | Industrial-Grade Stability | Fully Tested | Low-Profile & Standard Brackets Included | Windows/Linux Compatible
⭐ Premium ASIX Chipset for Stable Performance
Built with the trusted ASIX high-performance serial controller, offering stable communication, low latency, accurate signal timing, and superior compatibility across all industrial RS232 devices.
⭐ 4 Independent RS232 Ports
Supports simultaneous multi-device communication with full RS232 functionality — perfect for PLCs, CNC machines, modems, POS systems, label printers, sensors, and automation equipment.
⭐ High-Quality PCB & Industrial-Grade Components
Features a multi-layer, high-grade PCB, gold-plated PCIe connector, reinforced soldering, and noise-reduction architecture for long-term reliability and interference-free operation.
⭐ Factory Tested – 3-Level Quality Control
Every card is tested three times:
✔ Chip-level electrical test
✔ PCB production line functional test
✔ Final PC-based data communication performance test
⭐ Low-Profile + Standard Brackets Included
Includes 2 brackets for universal compatibility — works with small-form-factor PCs, desktops, server cases, and industrial computers.
⭐ Wide OS & Device Compatibility
Supports Windows 7/8/10/11, Windows Server, Linux, Ubuntu, and many industrial systems. Works without conflict with most serial-based equipment.
Upgrade your industrial, commercial, or workstation PC with the BF+ PCIe to Serial 4-Port RS232 Expansion Card, engineered with a high-performance ASIX chipset for exceptional reliability, stable communication, and ultra-fast data transfer. Designed and manufactured in a major, high-standard factory, this card uses a premium-grade multi-layer PCB, gold-plated PCIe contacts, and precision components to ensure consistent long-term performance.
Each card is fully tested three times—component-level testing, in-line PCB function testing, and final computer-level verification—to guarantee flawless operation. Ideal for POS systems, CNC machines, modems, PLCs, printers, IoT devices, and legacy serial equipment.
With support for Windows, Linux, and industrial operating systems, plus both standard and low-profile brackets, this PCIe RS232 card fits seamlessly into any modern or compact PC system.




