SKU: 23218605786

Brainboxes 4 Port RS232 USB to Serial Server

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Description

Brainboxes 4 Port RS232 USB to Serial ServerMeet the Brainboxes 4 Port RS232 USB to Serial Servera compact, robust gateway that unlocks reliable four port RS232 communication from any USB equipped laptop or PC. This USB to Serial Server turns a single USB port into four independent RS232 interfaces, letting you connect legacy equipment, test rigs, embedded controllers, barcode scanners, POS devices, or industrial controllers with ease. Built for performance and reliability, it delivers steady

Meet the Brainboxes 4 Port RS232 USB to Serial Server—a compact, robust gateway that unlocks reliable four-port RS232 communication from any USB-equipped laptop or PC. This USB to Serial Server turns a single USB port into four independent RS232 interfaces, letting you connect legacy equipment, test rigs, embedded controllers, barcode scanners, POS devices, or industrial controllers with ease. Built for performance and reliability, it delivers steady data throughput, generous buffering, and broad Windows compatibility to keep your serial workflows smooth, even in demanding environments.

  • Four independent RS232 ports on a single USB-to-serial server give scalable connectivity for complex setups. Each port operates with its own transmit and receive paths, so you can connect four separate devices—such as modems, printers, barcode scanners, PLCs, or laboratory instruments—simultaneously to one PC. This arrangement reduces USB adapter clutter, simplifies cabling, and keeps your workstation organized while preserving distinct data streams for every device. Whether you’re running a small lab, a retail environment, or a test bench, you gain flexible, reliable serial access without compromising performance.
  • High-speed data rates: up to 921,600 baud per port. The Brainboxes adapter is designed for speed without sacrificing reliability. Fast baud rates support data-intensive serial applications, enabling quick configuration tasks, rapid data logging, and responsive device control. Even with multiple channels active, the architecture maintains stable throughput and minimizes latency, ensuring that serial communication remains responsive for each connected device. This makes it ideal for real-time monitoring, data acquisition, and automation workflows that rely on timely serial data exchange.
  • Efficient FIFOs: 128-byte transmit and 256-byte receive buffers per channel. The buffering architecture is engineered to absorb bursts and smooth transmission. A 256-byte receive FIFO helps prevent data loss when devices transmit data quickly, while a 128-byte transmit FIFO provides a comfortable reservoir for outgoing data, reducing the risk of stalls in busy systems. Together, these buffers support longer, uninterrupted serial sessions and improve performance in polling, event-driven, or streaming serial applications across all four ports.
  • 1 Mbit line drivers: strong signal drive for reliable long-distance or noisy environments. The robust line drivers help maintain signal integrity across cables and electrical environments where interference or length could degrade performance. Whether you’re connecting to devices placed away from the host, operating in a factory floor, or using longer RS232 cables, the 1 Mbit drive capability helps preserve clean, error-free communication and reduces the need for signal-repeaters or retries.
  • Windows drivers included: supports Windows 32-bit and 64-bit operating systems for quick setup. The driver package is designed to integrate smoothly with common Windows environments, presenting four virtual COM ports that map directly to the four RS232 channels. With plug-and-play simplicity and straightforward software configuration, you can get up and running quickly with your serial-enabled applications, automation scripts, or legacy devices on Windows desktops and laptops.

Technical Details of Brainboxes 4 Port RS232 USB to Serial Server

  • Ports: 4 x RS232 serial ports over a USB connection
  • Interface: USB connection to the host computer (USB-powered, no separate supply required for standard operation)
  • Baud rate support: Up to 921,600 baud per port
  • Transmit FIFO: 128 bytes per port
  • Receive FIFO: 256 bytes per port
  • Line drivers: 1 Mbit per second per port
  • Driver support: Windows 32-bit and Windows 64-bit drivers included

How to install Brainboxes 4 Port RS232 USB to Serial Server

  • Connect the adapter to an available USB port on your Windows PC or laptop. The device is powered through USB, so no external power supply is required for standard operation.
  • Install the included Windows drivers (32-bit and 64-bit) when prompted by the operating system. If automatic installation does not occur, run the driver installer from the package or contact support for the latest Windows driver package. After installation, Windows will recognize the device and prepare four virtual COM ports.
  • Open Device Manager to confirm four new COM ports are assigned to the USB-to-serial adapter. Each port appears as an individual COM port, allowing software to address devices independently.
  • Configure your terminal programs or software to use the appropriate COM ports, matching the required baud rate, parity, data bits, and stop bits for each connected device. Save these configurations to simplify repeated use.
  • Test each connection with a loopback or device-specific test to verify signal integrity and data reliability. If needed, reassign COM numbers or adjust settings to resolve conflicts and ensure stable communication across all four ports.

Frequently asked questions

  • What is the Brainboxes 4 Port RS232 USB to Serial Server? It is a four-port USB-to-RS232 serial adapter that provides four independent serial interfaces over a single USB connection, designed to connect multiple RS232 devices to a computer with ease.
  • How many ports does it have? Four RS232 ports.
  • What speeds does it support? Up to 921,600 baud per port on all channels, enabling fast serial communication for demanding applications.
  • Which operating systems are supported? Windows 32-bit and Windows 64-bit; drivers are included for quick setup and reliable operation.
  • Does it require external power? No external power is required; the device is powered via USB.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 23218605786

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Mertz
Chelsea, US
★★★★★ 4
Good for travel
It was very convenient to use in my travel water pick. The taste is good. The only difficulty was opening it.
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Reviewed in the United States on August 30, 2025
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Nadine
Dallas, US
★★★★★ 5
excellent mouthwash but contains xylitol
This mouthwash is awesome! It makes my teeth and gums feel very clean and healthy. The mint flavor is refreshing. It's a concentrated mouthwash which is designed to be used in your water flosser. This order contains 30 individual packs of concentrated mouth wash. I made the mistake of not reading the product description before using it, so it took me a couple of minutes to figure out how to open one. You twist the end off to open each pack. Please note that this product contains xylitol so be sure to keep them far away from dogs as xylitol is extremely toxic to dogs.
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Reviewed in the United States on May 20, 2025
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Jemi Patel
Charlottesville, US
★★★★★ 1
Leaking
Worst it’s was leaking everywhere
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Reviewed in the United States on July 7, 2025
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Shawneece
Natrona Heights, US
★★★★★ 2
Not the best
Was not as consecrated as I hoped it would be
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Reviewed in the United States on May 5, 2026
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michele
Battle Creek, US
★★★★★ 5
The additive makes the water nice and minty. Each pack flavors one tank full of water.
MySmile Water Flosser Mouthwash, Travel Size Concentrated Mouth Wash for Adults, 15x Concentrated Equals 200 FL oz, Alcohol Free for Bad Breath, Fresh Mint, (30 Uses, 0.06 fl oz) First impressions: Nice individually portioned packages of concentrated additive for use in your water flosser. The liquid inside is to be added to a full tank of water. It makes the water nice and minty. Installation/setup: Add to a full tank of water in your water flossing machine. Final thoughts: The additive makes the water nice and minty. Each pack flavors one tank full of water. The instructions say to use the flosser twice a day and it is really a very pleasant taste. I like this and I’m glad I got it. ⭐️1 star - I don't recommend it at all, poor quality. ⭐️⭐️ 2 stars - I don't recommend it, it has multiple faults, or a very high price. ⭐️⭐️⭐️ 3 stars - It's passable, It has some faults but the quality is ok for what it is. ⭐️⭐️⭐️⭐️ 4 stars - Product quite acceptable, it does what it promises. ⭐️⭐️⭐️⭐️⭐️ 5 stars - Product that I totally recommend.
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Reviewed in the United States on February 26, 2025

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