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Description
B+B SmartWorx USB To Isolated Serial 2 Port RS-232 W/DB9MBridge legacy RS 232 devices to todays USB enabled systems with confidence and reliability. The B+B SmartWorx USB To Isolated Serial 2 Port RS 232 W DB9M is a dual port isolation adapter designed for industrial, commercial, and laboratory environments where data integrity and personnel safety are critical. This compact, rugged device brings two independent RS 232 channels onto a single USB connection, enabling you to run two serial devices from a
Bridge legacy RS-232 devices to today’s USB-enabled systems with confidence and reliability. The B+B SmartWorx USB To Isolated Serial 2 Port RS-232 W/DB9M is a dual-port isolation adapter designed for industrial, commercial, and laboratory environments where data integrity and personnel safety are critical. This compact, rugged device brings two independent RS-232 channels onto a single USB connection, enabling you to run two serial devices from a modern PC, embedded controller, or industrial PC without sacrificing performance or protection. The standout feature is its galvanic isolation rated up to 2000 V RMS between the USB host and the RS-232 serial side, a specification that reduces the risk of ground loops, voltage spikes, and electrical noise from compromising critical equipment or skewing sensor data. Whether you’re integrating barcode scanners, CNC peripherals, PLCs, instrumentation, or scientific instruments, this adapter helps you preserve signal quality while simplifying installation and maintenance. The DB9M connectors on the device side deliver secure, dependable RS-232 cabling that stands up to busy shop floors and field deployments. In short, this dual-port USB-to-serial converter makes it possible to preserve the value of legacy hardware while enjoying the convenience and flexibility of modern USB-enabled systems.
- Dual isolated RS-232 channels: Connect two serial devices independently through two DB9M ports, with galvanic isolation protecting both devices and operators from ground loops, spikes, and EMI.
- USB as the connectivity backbone: Plug-and-play USB interface provides quick integration with laptops, desktops, and embedded controllers; no separate power supply required in most setups.
- Rugged, space-efficient design: A compact enclosure with secure DB9M connections is built to withstand industrial environments, machine rooms, and field installations without bulky peripheral hardware.
- Broad OS compatibility and easy software integration: Recognized by Windows, Linux, and macOS as standard serial ports, enabling straightforward software configuration with minimal setup time.
- Scalable solution for complex systems: Two isolated serial channels allow simultaneous communication with two devices, enabling synchronized data collection, remote control, and monitoring in a single, cost-effective unit.
Technical Details of B+B SmartWorx USB To Isolated Serial 2 Port RS-232 W/DB9M
- Ports: 2 isolated RS-232 serial channels with DB9M (male) connectors, enabling direct connection to standard RS-232 devices.
- Isolation: galvanic isolation up to 2000 V RMS between the USB host side and the RS-232 ports, providing protection against voltage spikes, ground loops, and transient noise.
- USB interface: USB host connection for power and data; typically bus-powered with no external power supply required, depending on host capabilities.
- Electrical signaling: Standard RS-232 signaling with compatible voltage levels and asynchronous data transmission to support typical baud rates and serial configurations.
- Connector configuration: 2x DB9M connectors on the device; compatible with a wide range of serial cables and devices that use RS-232 interfaces.
- Operating system compatibility: Works with major operating systems (Windows, Linux, macOS) and presents the ports as conventional COM or serial ports to software applications.
- Physical design: Compact, rugged housing intended for industrial and laboratory environments, designed for stable installation in desks, racks, or equipment cabinets.
- Compliance and support: RoHS-compliant construction with manufacturer support and updates to ensure long-term compatibility and security in evolving IT environments.
how to install B+B SmartWorx USB To Isolated Serial 2 Port RS-232 W/DB9M
- Step 1: Connect the adapter to a USB port on your computer or controller. The device is designed to be bus-powered, so you typically do not need an external power supply.
- Step 2: Power up your system and wait for the operating system to recognize the new USB device. In most cases, Windows will automatically install the appropriate drivers and assign two virtual COM ports to the two isolated RS-232 channels; Linux and macOS may require minimal driver steps or rely on generic serial port support.
- Step 3: Attach your RS-232 devices to the corresponding DB9M connectors on the adapter, making sure to align the cable orientation and pinout with each device’s requirements. Use clean, properly shielded serial cables to maximize signal integrity in electrically noisy environments.
- Step 4: Open your software application and select the two COM ports assigned by the OS for each RS-232 channel. Configure the serial settings (baud rate, data bits, parity, stop bits, and flow control) to match the specifications required by each connected device.
- Step 5: Test communication with a basic loopback or a small data transfer sequence to verify reliable transmission and reception on both ports. If issues arise, verify Cabling, port settings, and driver installation before diagnosing hardware faults.
Frequently asked questions
- Q: Does this adapter provide galvanic isolation between the USB host and the RS-232 devices? A: Yes. It delivers up to 2000 V RMS isolation between the USB host side and the isolated RS-232 ports, helping prevent ground loops and protecting both equipment and operators from voltage transients.
- Q: Can I use both RS-232 ports at the same time? A: Absolutely. The device supports two independent RS-232 channels, allowing simultaneous, separate communications with two different devices without interference.
- Q: Is the adapter hot-swappable and does it require special power? A: The unit is designed for easy hot-plugging on systems that support USB devices. It is typically bus-powered through the USB connection and does not require an external power supply.
- Q: What operating systems are supported? A: The adapter is designed to work with Windows, Linux, and macOS, presenting each RS-232 port as a standard serial (COM) port for compatibility with a wide range of software and development environments.
- Q: Can I use this with industrial equipment and field devices? A: Yes. The combination of dual isolated channels and robust construction makes it suitable for industrial automation, point-of-sale peripherals, instrumentation, and other environments where isolation and reliability are critical.
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
4.8 ★★★★★
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Product Reviews
★★★★★ 5
Love,Love, LOVE This Cleanser – Dry Skin Game-Changer!
I can’t say enough good things about this cleanser. I have very dry, sensitive skin, and it’s hard to find products that cleanse effectively without stripping my skin or leaving it tight and flaky. This one is a total winner! The texture is creamy and gentle almost soothing when applied. After using it, my skin feels clean but still soft and hydrated. No irritation, no tightness, just a beautiful, healthy glow that I haven’t seen from a cleanser in ages. I’ve actually started looking forward to my skincare routine again because of how good my skin feels afterward. Another huge plus? No breakouts. Sometimes rich or hydrating products can clog my pores, but this cleanser hasn’t caused a single issue. In fact, my skin looks clearer and more balanced since I started using it. I’ve been pairing it with the Thayers Milky Toner, and the combo is a dream. The toner adds another layer of hydration, and together they leave my skin feeling plump, dewy, and calm. I’ve had multiple people comment on how radiant my skin looks lately, and I give all the credit to this duo. If you have dry or sensitive skin and want something gentle but effective, I highly recommend trying this. It’s officially a staple in my routine now!
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Absolutely Fabulous for Any Age - Not To Be Missed
Whether you have a 15-step skincare regime or are extremely low maintenance in your skincare routine, this is a product that is an essential component to a healthy, radiant complexion. I’ll admit, my skincare game became fairly extensive as I approached 40. Prior to that, I had a solid day and night routine using 4-5 products.
After 40, my skin required more effort with a focus on hydration, prevention of damage from sun, stress, lack of sleep, etc., barrier building, and aging gracefully. At 55, people often comment on how nice my skin is and some people think I’m still in my 40s.
I owe that to a fantastic arsenal of skincare products rather than procedures (plus water, solid nutrition, and at least 8 hours of sleep per night). Nothing wrong with getting Botox or fillers, but I’m rather frugal and would rather focus on daily maintenance to ensure my skin looks as good as possible regardless of my age.
This milky toner is as good - and actually better - than brands at much higher price points. It’s thick (in a good way), provides instant hydration, and keeps my skin glowing for hours. I use it in the morning as part of my AM skincare routine, as part of my skin prep prior to doing my makeup, and every night in my PM routine.
Some people use milky toner as a setting spray (mix equal parts toner and distilled water into a spray bottle and lightly mist your face once your makeup is complete). I prefer a setting spray that provides staying power rather than additional hydration, but I have sprayed this mixture on my face if I feel dry and my skin looks parched. It feels really nice on a hot day, especially if you keep the mister cool in the fridge.
I have tried adding drops to my foundation, which is a “viral” trend, but I find this product to be a bit too thick. A thinner consistency like the Byoma Milky Toner works better for me if I want to create a more dewy foundation. I find that using this Thayers product as part of my skin prep prior to foundation along with using a dewy, hydrating foundation is better for me.
I love that this bottle is huge, affordable, easily obtained from Amazon, and incredibly effective. It’s earned its spot in my holy grail products for life.
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Reviewed in the United States on July 9, 2025
★★★★★ 4
Gentle Milky Cleanser That Mostly Delivers on Hydration
I picked up the Thayers Milky Hydrating Face Cleanser with Snow Mushroom while it was on sale because I was looking for a non-drying face wash.
Overall, I do like it. The texture is gentle and milky—it doesn’t foam up, feels non-irritating on my skin, and rinses off easily. I also paired it with the moisturizer from the same line (though I skipped the toner since I already use one my skin prefers).
It does a good job cleansing without stripping my skin too harshly, which I appreciate since I tend to lean dry. That said, I do notice a slight dryness after washing and drying my face, which surprised me a bit given the “hydrating” claim.
One other small downside is that the packaging was a bit difficult to open.
Still, overall it’s a gentle, easy-to-use cleanser that feels calming on the skin and doesn’t cause irritation.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Leaves face feeling clean, soft, and smooth
Love this facial cleaner. I actually double cleanse my face. First I use an oil based makeup remover, then I cleanse with this face wash. It doesn’t strip my skin of moisture, and I’ve noticed less redness on my face after switching to this cleanser. The cleanser is light and leaves my face feeling clean, soft, and smooth. I would recommend to people who notice their face feeling “tight” or noticing redness after cleansing.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Great every day cleanser.
My go to facial cleanser. Mild and protects your skin barrier. Great for any skin type.
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Reviewed in the United States on May 26, 2026