Sunix universal PCI Multi-port serial card provides RS-232 Serial connection ports on your system for industrial communication and automation applications. The 4037 card works on both 32-bit and 64-bit PCI Bus with 3.3V or 5V power, allowing this multi-port serial card to be installed in virtually any PC system and compatible with all major operating systems. The card supports multi independent RS-232 ports, with each port transfer data up to 921.6 Kbps. Sunix universal PCI Multi-port serial cards is the best solution for various industrial communication and automation applications.

Sunix's 4037P card is specially designed to allow power output from the ninth pin of the connector to enable power up of the connected devices without power adapter. The card allow user to set each individual port with 5V, 12V, or RI (no power). User can also choose to draw the needed power from the system PCI bus or the external system power supply. Each of the connected has a built-in circuit protection to prevent damage from excessive current and short circuit of the connected devices.