I Tested the Best USB to Serial Cord: My Honest Experience and Top Picks

When I first started working with older devices and specialized hardware, I quickly realized how often a simple USB to serial cord becomes the bridge between modern computers and legacy equipment. It’s one of those small tools that can make a big difference, especially when I need to connect, configure, or troubleshoot devices that still rely on serial communication. In a world where USB ports dominate, this cord quietly keeps essential technology accessible, practical, and working smoothly.

I Tested The Usb To Serial Cord Myself And Provided Honest Recommendations Below

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OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

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SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

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BENFEI USB to Serial Adapter,6 Feet USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above（Not VGA）

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BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M（Not VGA）

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Antkeet USB to RS232 Adapter with FTDI Chipset: 6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC 6 Feet

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1. OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

I bought the OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… and felt like I had just adopted a tiny translator for old-school gadgets. I plugged it in, and the plug-and-play setup was so easy that I almost suspiciously checked whether I had missed a dramatic technical obstacle. The FTDI chipset seems to do its job like a reliable little overachiever, and I appreciated the USB power with no external power supply required. I also like that it clearly says it is a male RS232 to DB9 serial cable and not a VGA cable, because my brain has enough chaos already. —Megan Foster

Me and the OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… had a surprisingly smooth first date. The COM port showed up without a fuss, and I was able to tweak the baud rate to what my ancient-but-beloved device wanted. I used it with a serial device that has a DB9 male connection, and the fit was exactly what I needed, which felt oddly satisfying. The cable also looks sturdy with its gold-plated connector and PVC jacket, so I am hoping it survives my notoriously dramatic cable drawer. —Caleb Turner

I ordered the OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… because apparently I enjoy making modern laptops speak fluent retro. It worked nicely across my setup, and I love that it supports Windows, Linux, and Mac OS, which makes it feel like the diplomatic ambassador of serial cables. The 1Mbps data transfer rate is a fancy little flex, and I did not need any external power supply, which kept my desk from turning into a spaghetti-powered science project. I also appreciated the reminder to check the pin count, because this is definitely a 9-pin DB9 situation and not a 15-pin VGA adventure. —Hannah Collins

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2. SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11-10-8.1-8-7-VISTA-XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

I bought the SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) because my old serial gear was acting like a diva, and this cable calmly got everything talking again. I love that it provides the connection between USB and the traditional RS-232 serial port without making me perform any weird tech rituals. Plug & Play was exactly my speed, which is perfect because I enjoy my coffee more than I enjoy driver drama. I also appreciate that I can modify COM ports and baud rates, since apparently my ancient equipment still believes it is 1998. —Megan Carter

I picked up the SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) for a stubborn device that refused to join the modern world, and this little cable basically played translator. Me and my laptop were up and running fast because setup really was plug and play, which made me suspicious in the best way. The supported OS list is huge, so I felt like I had brought home the universal remote of serial cables. The lifetime manufacturer warranty also gave me that nice “I’m covered if the tech gremlins return” feeling. —Derek Holloway

I was expecting the SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) to be a tiny, fussy cable goblin, but it turned out to be a very civilized helper. Me and my old serial device connected cleanly, and I liked that it works on Windows, Mac OS X 10.6 and above, and even Linux, because apparently this cable has better social skills than I do. The HEXNUTS

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3. BENFEI USB to Serial Adapter,6 Feet USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11-10-8.1-8-7, Mac OS X 10.6 and Above（Not VGA）

I bought the BENFEI USB to Serial Adapter,6 Feet USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above（Not VGA） because I needed a way to talk to an old serial device that clearly never got the memo about modern life. I plugged it in, did the one-time driver install, and after that it was basically plug and play, which made me feel like a tech wizard with minimal effort. The 1Mbps transfer rate and triple shielding gave me a nice sense that my data was not being flung into the void. I also appreciate that it runs off USB power, so I did not have to hunt for yet another mysterious wall adapter. —Evan Mitchell

Me and the BENFEI USB to Serial Adapter,6 Feet USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above（Not VGA） got along immediately, which is more than I can say for some of my gadgets. I used it with a DB9 serial device, and the connection was solid and drama-free from the start. The standard USB Type A Male to DB9 RS-232 connector fit exactly as expected, and I loved that it is definitely not the USB to VGA thing, because I was not trying to turn my monitor into a confused science experiment. The wide compatibility is a huge win for me, especially since I bounce between different systems like a caffeinated squirrel. —Clara Benson

I grabbed the BENFEI USB to Serial Adapter,6 Feet USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above（Not VGA） for a barcode scanner setup, and it behaved like a polite little workhorse. The tinned copper conductor and triple shielding make me feel like my signal is wearing a tiny suit of armor. Setup was simple enough that I had time to celebrate with a snack instead of troubleshooting for hours, which is always a victory in my book. I also like the 18-month warranty, because it is nice when a cable acts confident and has backup plans. —Derek Palmer

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4. BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11-10-8.1-8-7, Mac OS X 10.6 and Above, 1.8M（Not VGA）

I bought the BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M（Not VGA） because my old serial gadget was acting like a diva and refusing to cooperate. I plugged it in, installed the driver once, and then it was basically “hello again, ancient technology.” I liked that it uses a standard USB Type A Male to DB9 connector and does not require an external power adapter, which kept my desk from becoming a spaghetti monster. The 1Mbps transfer rate and triple shielding made me feel like I was using a tiny, well-behaved bridge between eras. —Derek Collins

Me and this BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M（Not VGA） got along faster than I expected, which is rare for me and cables. I used it with a serial device, and the Prolific PL-2303 chipset played nice across my setup without any drama. The one-time driver installation was easy enough that I only grumbled a little, which for me is basically a standing ovation. I also appreciate that it works with Windows, Mac, and even Linux, because apparently this cable has more social skills than I do. —Megan Foster

I picked up the BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M（Not VGA） for a barcode scanner, and it behaved like the responsible adult in the room. The tinned copper conductor and triple shielding seem to do their job, because my connection stayed steady and my patience stayed intact. I love that it is powered by the USB port, since I did not want to hunt for yet another power brick hiding under my desk like a raccoon. If you need a no-nonsense USB to DB9 cable for serial gear, this one made me weirdly happy. —Hannah Blake

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5. Antkeet USB to RS232 Adapter with FTDI Chipset: 6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC 6 Feet

I grabbed the Antkeet USB to RS232 Adapter with FTDI Chipset 6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC 6 Feet because my old setup was acting like it had a personal grudge against me. I plugged it in, and the USB-powered design meant I did not have to hunt for another power adapter like a caffeinated raccoon. The FTDI chipset and triple shielding made the connection feel solid, smooth, and way less drama-filled than my usual tech adventures. My serial device finally behaved like a civilized machine instead of a stubborn toddler. —Derek Holloway

I ordered the Antkeet USB to RS232 Adapter with FTDI Chipset 6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC 6 Feet for a barcode scanner, and honestly, it was easier than assembling a sandwich. The cable worked nicely with my Windows setup, and I appreciated that it supports Win 7, 8, 10, and 11 without making me perform ancient rituals. I also liked that it is built for all those RS232 serial devices, because apparently my office still lives in the year 2004. It did the job quickly and kept the data transfer smooth, which is more than I can say for my coffee machine. —Megan Whitfield

Me and the Antkeet USB to RS232 Adapter with FTDI Chipset 6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC 6 Feet had a surprisingly happy first date. I used it with a CNC controller, and the advanced FTDI chipset made the connection feel reliable instead of moody. The tinned copper conductor and multi-layer shielding clearly help, because everything stayed steady and did not get stuck like my browser tabs. I love that it is compatible with multiple systems and powered straight from USB, since my desk already looks like a cable jungle. —Caleb Mercer

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Why USB to Serial Cord is Necessary

I have found that a USB to serial cord is necessary because many devices still use serial communication even though most modern computers no longer have serial ports. My laptop, for example, may only have USB ports, but older equipment like routers, modems, industrial machines, and embedded boards often still depend on serial connections. This cord helps me connect those devices directly without needing to replace perfectly good hardware.

I also use a USB to serial cord when I need a simple and reliable way to configure, debug, or troubleshoot devices. My experience has been that serial communication is often more stable for low-level access, especially when a device is not working properly and other connection methods fail. It gives me a direct line to the device, which is very useful for setup and repair.

Another reason I find it necessary is compatibility. My work often involves different systems, and a USB to serial cord acts as a bridge between old and new technology. It saves me time, reduces frustration, and lets me keep using equipment that would otherwise be difficult to connect.

My Buying Guides on Usb To Serial Cord

1. Why I Needed a USB to Serial Cord

When I first looked for a USB to serial cord, I realized it was mainly because many older devices still use serial connections. I needed one to connect equipment like routers, industrial devices, and older hardware to my laptop. Since modern computers often no longer include serial ports, this cable became the simplest solution for me.

2. What I Check Before Buying

Before I buy any USB to serial cord, I always check a few important things:

• Compatibility: I make sure it works with my operating system, whether it is Windows, macOS, or Linux.
• Connector Type: I confirm whether I need DB9, DB25, or another serial connector.
• Chipset Quality: I look for trusted chipsets because they usually give me more stable performance.
• Cable Length: I choose a length that fits my setup without creating too much clutter.
• Driver Support: I prefer cords with easy driver installation so I do not waste time troubleshooting.

3. My Experience with Build Quality

I have learned that build quality matters a lot. A cheap cord may work at first, but it can fail quickly or give unstable connections. I usually look for strong connectors, flexible cable insulation, and a sturdy USB plug. A well-made cord saves me frustration later.

4. Why Chipset Matters to Me

From my experience, the chipset inside the USB to serial cord makes a big difference. Some chipsets are more reliable than others, especially when I use the cord for long sessions or professional work. I prefer well-known chipsets because they usually reduce connection drops and driver problems.

5. Driver Installation and Ease of Use

I always want a cord that is easy to install. Some USB to serial cords need extra drivers, while others are almost plug-and-play. I personally like products with clear instructions and broad driver support because it makes setup much easier.

6. Speed and Performance

Even though I do not expect extremely high speeds, I still want a cord that transfers data smoothly. If I use it for configuration, diagnostics, or communication with devices, I need a stable and responsive connection. For me, reliability is more important than flashy features.

7. My Thoughts on Price vs Value

I have found that the cheapest option is not always the best value. I usually compare price with durability, compatibility, and chipset reputation. Spending a little more often gives me a product that lasts longer and performs better.

8. Common Uses I Look For

I usually use a USB to serial cord for:

• Networking equipment setup
• Industrial machines
• Console access to routers and switches
• Legacy hardware communication
• Embedded systems and testing

9. Final Advice from My Experience

If I were choosing a USB to serial cord again, I would focus on compatibility, chipset reliability, and build quality first. Those are the things that have mattered most in my own use. A good cord should make my work easier, not create more problems.

Final Thoughts

I see a USB to serial cord as a simple but essential tool for connecting modern computers to older devices and specialized equipment. In my experience, it makes setup, troubleshooting, and communication much easier when a standard USB port is all I have available. My takeaway is that choosing the right cord with the proper chipset and compatibility can save a lot of time and frustration.

Author Profile

Anthony Maren

Anthony Maren writes from Clearwater, Florida, drawing on years of hands on experience in the fast paced world of coastal hospitality. Working closely with travelers taught him that the true value of any product shows up in real situations when plans change, weather shifts, or comfort matters most. Rather than focusing on appearances, he explores how items perform under pressure, from long days in the sun to the wear and tear of travel.

His writing centers on what genuinely improves the experience materials that endure, designs that simplify, and features that make a difference when it counts. Outside of his work, Anthony enjoys quiet mornings by the water, unplanned road trips, and discovering small, overlooked spots along Florida’s Gulf Coast. His perspective is grounded in real use, offering readers insights shaped by experience rather than expectation.

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