Brainboxes 4 Port RS232 Low Profile PCI Serial Port Card DB9

This Brainboxes 4 Port RS232 Low Profile PCI Serial Port Card DB9 is a universal PCI expansion that brings four dependable RS232 serial interfaces to a compact, half-height form factor. Engineered for reliability in demanding environments, this card is ideal for expanding legacy device connections on modern PCs without compromising performance. With four DB9-ready ports, it makes it simple to integrate data loggers, industrial controllers, POS systems, and other serial devices into a single, tidy computing setup. Built for speed and stability, it balances classic serial communication with contemporary PC compatibility.

• Four RS232 ports in a single low-profile PCI card: Add four fully functional RS232 serial ports to your PC using one compact, half-height card, freeing expansion slots for other peripherals while delivering robust, legacy-friendly connectivity.
• High-speed serial performance: Supports data transfer rates up to 115,200 baud with 64-byte deep transmit and 64-byte deep receive FIFOs, ensuring efficient, low-latency data flow for multiple serial devices simultaneously. The 1 Mbit/s line drivers provide strong signaling over standard cables and longer runs.
• Universal PCI compatibility with Windows 32-bit drivers: Designed to work across a wide range of PCI-equipped systems, the card includes drivers for all Windows 32-bit environments, simplifying installation and minimizing compatibility hurdles for legacy applications.
• Low-profile design for compact builds: The card’s low-profile (half-height) form factor fits slim or compact PC cases, making it a practical choice for industrial kiosks, point-of-sale stations, or embedded computing where space is at a premium.
• Reliable, plug-and-play expansion for legacy devices: Ideal for integrating older serial hardware with modern PCs, providing a stable platform for data acquisition, instrumentation, and serial-enabled peripherals without sacrificing system stability or performance.

Technical Details of Brainboxes 4 Port RS232 Low Profile PCI Serial Port Card DB9

• Ports: 4 x RS232 serial ports using DB9 connectors
• Interface: PCI (low-profile/half-height) expansion card
• Data rate: Up to 115,200 baud
• Transmit FIFO: 64-byte depth
• Receive FIFO: 64-byte depth
• Line drivers: 1 Mbit/s signaling capability
• Driver support: Includes Windows 32-bit drivers for easy installation
• Connectivity: Four DB9 serial ports for immediate device compatibility

how to install Brainboxes 4 Port RS232 Low Profile PCI Serial Port Card DB9

Installing this card is straightforward and designed to work with most standard PC configurations. Follow these steps to add four RS232 ports to your system quickly and with minimal downtime:

• Power off the computer, unplug from the mains, and open the chassis to access the PCI slots.
• Identify an available PCI slot, preferably a PCI or PCI-X slot depending on your motherboard’s compatibility, and remove the slot cover to allow access for the card.
• Insert the Brainboxes 4-port low-profile PCI serial card firmly into the slot until it sits evenly and is fully seated in the bus.
• Secure the card to the chassis with the appropriate mounting screw or bracket, ensuring it is stable and does not wobble.
• Reconnect the case, power up the system, and boot into your operating system.
• Install the included Windows 32-bit drivers (or download the latest version from Brainboxes’ support site) to enable the four serial ports. Follow the on-screen prompts to complete the driver installation.
• Once the drivers are installed, verify the new ports in Device Manager under “Ports (COM & LPT)” and test each port with a compatible serial device or loopback test to confirm proper communication.
• Reconnect your serial peripherals to the new DB9 connectors and configure software to use the correct COM port assignments and speeds as needed by your application.

Frequently asked questions

• How many serial ports does this card provide? It provides four RS232 serial ports via DB9 connectors, all accessible from the same PCI card.
• What is the maximum data rate supported by the card? The card supports data transfer rates up to 115,200 baud for each port.
• What are the FIFO depths? Each port has a 64-byte transmit FIFO and a 64-byte receive FIFO to help manage data flow and reduce bottlenecks in busy serial applications.
• What kind of drivers are included? The card includes Windows 32-bit drivers for easy installation on compatible operating systems.
• Is this a full-height card or a low-profile card? This is a low-profile (half-height) PCI card designed for compact PC builds and slim chassis systems.
• What kinds of devices are best suited for this PCI serial card? It is ideal for connecting legacy serial equipment such as industrial controllers, data loggers, POS terminals, laboratory instruments, and other DB9-compatible devices to modern PCs.