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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4.3 ★★★★★
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Clark Family
Lexington, US
★★★★★ 4
Smells Great and Works Well
Size: 3 Ounce (Pack of 1), Style: Cool Down Lotion
Smells great and goes on really smoothly. Skin felt soft and refreshed after use. It is pretty "liquidy" and can come out of the bottle a little on the quick and messy side, but nothing too terrible.
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Reviewed in the United States on March 9, 2025
J
Verified Purchase
jon
Belleville, US
★★★★★ 5
Works VERY well, NOT sticky, smells AMAZING!
Size: 16 Ounce (Pack of 1), Style: Cool Down Lotion
So... I had sunburn... very painful across my whole back, top of my forehead & the back of my arms. Stupid, I know... USE SUNBLOCK PEOPLE! However, if u don't because u want "a little color" and end up like me, then I highly recommend this after-sun product. It smells amazing and doesn't leave the sticky residue like green Aloe Vera. After rubbing it in, my hands feel super soft. It gives my skin the hydration it needs so I won't peel (and lose the tan I was desperate for). My personal hack... After the sensitivity of the burn calms, I like keeping a bottle in the fridge for that extra cooling sensation. I love this stuff! Sun Bum is a great product... u should definitely try the sunblock tho, it worked where I applied it! I didn't take a pic for obvious reasons, but when u rub it in, it will dry clear.
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Reviewed in the United States on July 14, 2025
H
Verified Purchase
HEATHER H
Alexandria, US
★★★★★ 5
Cruise
Size: 8 Ounce (Pack of 1), Style: Cool Down Lotion
Smells great just as described
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Reviewed in the United States on May 25, 2026
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Verified Purchase
Shawshank
Lake Worth, US
★★★★★ 5
Works Exceptionally well without feeling like you just applied Super Glue to your Body.
Size: 8 Ounce (Pack of 1), Style: Cool Down Lotion
I would provide a picture of the bottle but TSA took mine. This is some of the best post sunburn lotion I have ever used. I just finished writing a review of a sunblock lotion that did a great job, what I did not mention was the only sunburn I got was on my lower back where I didn't apply that lotion. It was a pretty uncomfortable burn, especially when I tried to sleep in the forward berth of a sailboat, or when I tried to wear swimming trunks with an elastic type waist, thankfully I had a couple of sets of board shorts that alleviated that irritation. But back on point. What I like the most about this lotion is how it applies. Usually, in the past, I did not like using aloe lotions because I felt like it was like glue when it dried on my skin and I felt like it made my skin feel tight. This stuff applies extremely well and I'm not exaggerating one bit when I say the relief is IMMEDIATE. As soon as I applied it to my sunburn, I felt immediate relief! It also doesn't feel like you just spread a bunch of super glue on your burn when it dries. It absorbs into your skin, cools your "hot spot" and doesn't leave a residue to get onto your clothing, or onto the mattress in my berth on the sailboat. Win and win. I can't recommend this product enough. The only negative experience was when TSA snagged my bottle going through security in Miami because I forgot to put it in my checked bag. But that was just the good ol' TSA doing their job in the amazing way they always do. (sarcasm dripping sounds) It works so well that I bought a replacement. So I would recommend purchasing the 3 oz tube if you plan on traveling with it. This is an excellent product, I'm not sure how long it lasts, because I forgot my sunburn was nothing me, or it enabled me to fall back asleep after applying. It does have that coconutty smell, but it's not like I just spent 3 hours in a hot tub filled with coconut oil. Hmmm... Idea forming... Anyway, purchase with confidence, this Texan who got a sunburn on his lower back and treated it with Sun Bum approves this message.
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Reviewed in the United States on July 27, 2021
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Verified Purchase
Jen
New York, US
★★★★★ 5
Perfect Little Sun Care Kit — Great for Travel!
Style: Original, Style: Original
I love this Sun Bum Road Tripper set! The travel‑sized products are perfect for tossing into my beach bag or carry‑on, and everything smells amazing. It has all the essentials you need for a day in the sun without taking up a ton of space. The quality is exactly what you expect from Sun Bum — gentle, effective, and reliable. This is such a convenient little kit for trips, beach days, or keeping in the car. Definitely a must‑have for anyone who loves being outdoors.
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Reviewed in the United States on April 27, 2026

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