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Description
Brainboxes 3 Port RS232 PCI Serial Port CardTransform your desktop PC into a robust, three port RS232 hub with the Brainboxes 3 Port RS232 PCI Serial Port Card. Built for reliability and broad compatibility, this Universal PCI card brings three independent RS232 serial channels to your system, delivering dependable data communication for industrial controllers, measurement equipment, laboratory instruments, POS terminals, and legacy peripherals. Whether youre upgrading an aging workstation or
Transform your desktop PC into a robust, three-port RS232 hub with the Brainboxes 3 Port RS232 PCI Serial Port Card. Built for reliability and broad compatibility, this Universal PCI card brings three independent RS232 serial channels to your system, delivering dependable data communication for industrial controllers, measurement equipment, laboratory instruments, POS terminals, and legacy peripherals. Whether you’re upgrading an aging workstation or equipping a new build with legacy interfaces, this card offers a seamless, PCI-based solution that blends performance with simplicity. With drivers available for all Windows 32-bit and 64-bit operating systems, you can count on straightforward installation and broad software compatibility to keep your serial devices in operation without friction.
- Three RS232 serial ports on a single Universal PCI card, delivering expanded I/O capacity for serial devices and host applications.
- Data transfer rates up to 115,200 baud, enabling fast, reliable communication with modern and legacy serial hardware.
- 64-byte deep transmit FIFO and 64-byte deep receive FIFO to smooth data bursts, reduce CPU overhead, and improve throughput in multi-device configurations.
- 1 Mbit/s line drivers ensure clean signal integrity across typical RS232 cable runs, helping maintain accurate data transmission over moderate distances.
- Comprehensive Windows driver support for all 32-bit and 64-bit operating systems, simplifying installation and maximizing compatibility with a wide range of software and automation tools.
Technical Details of Brainboxes 3 Port RS232 PCI Serial Port Card
- Three RS232 serial ports on a single PCI card for expanded serial I/O.
- Supports data transfer rates up to 115,200 baud for rapid serial communications.
- 64-byte transmit FIFO and 64-byte receive FIFO to handle data bursts with minimal latency.
- 1 Mbit/s line drivers provide strong signal integrity across standard RS232 distances.
- Universal PCI interface designed for broad compatibility with a wide range of motherboards and system configurations.
- Drivers included for Windows 32-bit and Windows 64-bit operating systems, ensuring easy integration into most PC environments.
how to install Brainboxes 3 Port RS232 PCI Serial Port Card
Installing the Brainboxes 3 Port RS232 PCI Serial Port Card is straightforward and designed to minimize downtime when expanding your PC’s serial capabilities. Follow these practical steps to get up and running quickly:
- Power down the computer and unplug it from the wall. Ground yourself to prevent static discharge and protect sensitive components.
- Open the computer case to access the motherboard and locate an available PCI slot. Remove the chassis slot cover if necessary to accommodate the card.
- Carefully align the card with the PCI slot and firmly press it into place until the connector seats securely. Reattach the securing screw to the chassis if applicable.
- Close the case and reconnect power. Power on the system. Modern Windows installations will typically detect the new hardware automatically.
- Install the Windows drivers provided for 32-bit and 64-bit operating systems. After installation, open Device Manager, verify that the new COM ports appear under “Ports (COM & LPT),” and configure each port’s settings (baud, parity, data bits, stop bits) to match your serial devices’ requirements.
Frequently asked questions
- How many serial ports does this card provide? It provides three independent RS232 serial ports on a single Universal PCI card.
- What is the maximum baud rate supported? The card supports data transfer rates up to 115,200 baud for fast, reliable communication with RS232 devices.
- Which operating systems are supported? Drivers are included for all Windows 32-bit and 64-bit operating systems, ensuring broad compatibility with common workstation and server environments.
- What about signal integrity over cables? The card uses 1 Mbit/s line drivers and 64-byte FIFOs (both transmit and receive) to maintain stable, error-free data transmission across typical RS232 cable runs.
- How do I install and configure the ports? After physically inserting the card into a PCI slot, install the provided Windows drivers, then configure each COM port in your software or via the operating system’s device manager to match your device settings.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Excellent all-poly athletic socks for general lifting and HIIT.
Size: Medium, Color: Black/White/Grey
***These are NOT “low” -cut socks as the description in the title states. These are actually “quarter”-cut socks as clearly visible in the picture of the sock itself. “Low” -cut socks are shorter than this height but still visible with a shoe. Also, on the actual UA package of these socks, it clearly states these are QUARTER cut socks.
My review: Gave these UA Performance Tech socks (UAPT) 5 stars since they’re very good but in all reality not the best socks I’ve ever had for lifting and HIIT workouts. That title goes to Nike Dri-Fit MAX socks (DFM)….but these socks are really good. Like Nike’s DFM’s, these UAPT socks come in sizes, halleluah (M, L, and XL). The idea that most athletic sock are sized 6-12 and should therefore fit everyone perfectly is absolutely ridiculous. Your shoes come in whole and half sizes…so socks should at the very least be sized like these UAPT’s and Nike DFM’s…in S/M/L or in this case, M/L/XL. I wear a men’s size 8 shoe and the M (medium) size in these socks was a perfect fit; true to size.
Also, UAPT socks are ALL polyester with Spandex which is ideal and 100% that which you want for athletic socks: wicking with stretch. Cotton socks are the absolute worst thing you could wear to the gym since they’re sponges for sweat and therefore get wet and heavy, cause blisters, tend to stink, stick to skin, etc… IF you prefer cotton socks for athletics, then you don’t understand how performance fabrics work in athletics and training. You do NOT want cotton in your athletic apparel. You want your fabrics that wick sweat away; NOT soak up sweat and hold onto it. Also, the flexibility and stretch of the foot and ankle parts of the sock were both just right. Snug but not too tight. Wicking is perfect, too. Already worn during two 3 1/2 hour workouts and my feet stayed as dry as a desert.
When looking for UA athletic socks on Amazon, I surprisingly continued to find UA “athletic” socks made with mostly cotton which completely surprised me because a serious athletic company should produce an abundance of performance-level socks… i.e. all-poly socks. Thank goodness I finally came across these UA all-poly Performance Techs. The only drawback to these UAPT’s…and it’s a minor drawback…is that unlike Nike DFM’s, these do not come in L & R (left and rights) to specifically match the individual foot shape. Nike DFM socks come in L and R which sets them apart from all other athletic socks…and yet I don’t like supporting a massive monopolistic athletic apparel company like Nike, but they’re the only one that makes THE best athletic sock.
Nonetheless, these UAPT’s are perfect workout/HIIT/lifting socks for the bundle value price of six pair and three colors. If you’re looking to match your new UA or Rock shoes with the appropriate UA athletic sock, then here you go. I chose the black/white/gray mix bundle since I have new pairs of a black and a white version of the same UA-Rock shoe. These UAPT socks are medium thickness so they didn’t take up an exorbitant amount of room in my shoes but they’re thick enough to prevent blisters and provide cushion. Overall they’re very comfortable, hold a good stretch, hold their shape, and seem to be durable but only time will tell.
And since we’re on the black and white sock subject, I couldn’t resist: I read a shoe review about someone angered that his new UA/Rock black shoes (obviously bought for casual wear in lieu of gym use) staining his white cotton socks. First of all, never ever wear white socks (much less cotton white socks) with black athletic shoes! The possibility of staining is always there and the appearance just doesn’t work. However, you can get away with black socks with white shoes in some cases…but never white socks with black shoes. Why? Who knows? It’s just one of those unwritten rules of the gym. And no, I didn’t make the rules…so don’t blame the messenger. LOL!
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Reviewed in the United States on July 28, 2025
★★★★★ 5
Very soft and wears well
Size: Medium, Color: Black/White/Grey
Very nice quality and soft
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Great buy
Size: X-Large, Color: Black/Black/Black
Good socks that fit well.
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Reviewed in the United States on February 20, 2026
★★★★★ 4
Good sock
Size: Large, Color: Black/White/Grey
Great cushion and solid fit. Some days my feet are tired from the compression fit, but they do support my feet well.
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Reviewed in the United States on October 9, 2025
★★★★★ 5
Exceptional!
Size: Large, Color: Black/Black/Black
Best socks I have ever worn. Already bought more.
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Reviewed in the United States on March 31, 2026