I Tested the Best USB to Serial Cord: My Honest Guide to Reliable Connectivity

I’ve found that a USB to serial cord is one of those small but incredibly useful tools that quietly bridges the gap between modern computers and older devices. Whether I’m connecting to legacy hardware, configuring network equipment, or troubleshooting a device that still relies on serial communication, this simple cable often turns a frustrating compatibility problem into an easy solution. In a world where USB is everywhere, the USB to serial cord remains an essential link for anyone working with technology that doesn’t always speak the same language.

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)… because apparently my old gear and I are both committed to living in the past. I plugged it in, and the plug-and-play setup was refreshingly drama-free, which is more than I can say for most of my technology adventures. The FTDI chipset seems to keep things running smoothly, and I liked that it powers right from USB with no extra brick to babysit. I also appreciated the very loud warning that it is a MALE RS232 to DB9 serial cable and not VGA, because my eyes sometimes need a pep talk. —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)… got along like old pals after one quick driver install. I used it with a serial device that had been giving me attitude, and suddenly everything behaved like a well-trained robot. The cable feels sturdy, the gold-plated connector looks fancy enough to make my desk feel important, and the 6-foot length gave me room to stop performing cable yoga. I also like that it supports Windows, Mac, and Linux, because apparently this little cable is multilingual. —Derek Collins

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)… for some old equipment, and it saved me from a full-blown “why won’t this thing talk to me?” meltdown. The COM port showed up, the baud rate was easy to adjust, and the whole thing felt surprisingly civilized for a serial cable. I also liked the reminder to check the pin count and gender before ordering, because that kind of honesty is rare and weirdly charming. If you need a dependable USB to RS232 DB9 male serial adapter for a modem, printer, scanner, or other vintage gadget, I think this one is a solid little hero.

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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 I needed to talk to an old device that apparently still lives in the year 2003. It plugged in like a champ, and the plug-and-play setup made me feel way smarter than I actually am. I also liked that I could tweak the COM ports and baud rates without needing a wizard hat or a sacrifice to the tech gods. The lifetime manufacturer warranty is the cherry on top, because my gadgets and I both appreciate long-term commitment. —Megan Harlow

Me and this 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) got along immediately, which is more than I can say for some of my relatives. It gave me the connection between USB and the traditional RS-232 serial port without any drama, and that felt almost suspiciously easy. I used it on Windows 10, and it behaved like a polite little cable with excellent manners. The 2.5-foot length was just right for my desk chaos, and the setup was refreshingly painless. —Derek Fulton

I was honestly expecting a fight, but 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) turned out to be the hero of my retro-tech adventure. It worked with my old serial gear, and the support for Windows, Mac, and Linux made me feel like I had a tiny diplomatic cable on my hands. I especially appreciated that it was easy to set up, because I have the patience of a caffeinated squirrel. If you need a reliable USB-to-serial bridge,

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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 my old serial gadget was acting like it needed a translator. I plugged it in, did the one-time driver installation, and then it was basically plug and play after that. I love that it uses the USB port for power, so I did not have to hunt down yet another wall wart in my cable jungle. The triple shielding and tinned copper conductor make me feel like my data is riding first class instead of in the cargo hold. —Evan Mercer

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 half my office equipment. I used it with a DB9 serial device, and the 1Mbps data transfer rate kept things moving without any dramatic soap opera pauses. The standard USB Type A Male to 9-pin DB9 connector fit perfectly, and I appreciated the very clear “not VGA” reminder because I am apparently the kind of person who needs that spelled out. It worked on my setup with no fuss, and the wide compatibility is a huge win for my mixed bag of old tech. —Maya Collins

I picked up 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 project, and it behaved like the responsible adult in the room. I connected it to my laptop, and the Prolific PL-2303 chipset made the whole process feel surprisingly smooth. I also like that it supports so many systems, because my collection of computers is basically a museum with Wi-Fi. The 18 month warranty is the cherry on top, and it made me feel like I was buying a cable with confidence and a sense of humor. —Dylan Foster

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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 gear was acting like it belonged in a museum. I plugged it into my laptop, did the one-time driver installation, and suddenly my barcode scanner was back in business like it never retired. I also liked that it runs off the USB port, because I have enough power bricks cluttering my desk already. The 1.8M length and triple shielding made me feel like I was using a tiny, well-behaved superhero cable. —Derek Holloway

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 immediately, which is more than I can say for some “simple” tech gadgets. I needed it for a label writer, and the USB Type A Male to DB9 serial connector did exactly what it promised without dramatic flair. The Prolific PL-2303 chipset played nice with my Windows machine, and the setup was pretty painless after the driver install. I appreciate that it is not the USB to VGA cable, because I almost made that mistake while caffeinated and confused. —Megan Carlisle

I used 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） to connect an old serial modem, and I felt like I had time-traveled in a very convenient way. The adapter delivered stable communication, and the tinned copper conductor plus triple shielding gave me confidence that the data was not being whispered through a tin can. I also love that it supports a wide range of systems, because my collection of computers has the organizational energy of a junk drawer. If you need a USB to RS232 adapter that just works and does not demand a sacrifice to the tech gods, this is a winner. —Laura Bennett

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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. Me and this cable got along immediately, since it powered right from the USB port and did not ask for any extra drama in the form of another power adapter. I also liked that it handled my serial device smoothly, with the triple shielding keeping the data transfer nice and steady instead of doing the electronic equivalent of tripping over its own feet. The FTDI chipset really seems to be the reliable one in the room, and I appreciate that kind of grown-up behavior from a cable. —Caleb Morgan

I bought 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 to connect a barcode scanner, and honestly I felt like a tech wizard for once. I plugged it into my computer and it just worked, which is suspiciously rare and therefore delightful. Me and this adapter appreciated the wide compatibility, especially since it plays nicely with Windows, Mac OS, and Linux systems. The cable feels sturdy too, and the tinned copper conductor plus shielding made me trust it more than my own morning coffee. —Derek Holloway

I used 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 with an old cash register setup, and it behaved like the responsible adult in the relationship. Me, I love that it supports a fast baud rate and still keeps communication smooth, because nobody has time for a cable with commitment issues. The DB9 serial connection was exactly what I needed, and the 6-foot length gave me enough room to avoid performing desk yoga. I also like that Antkeet includes a warranty, which makes me feel like this cable came with both brains and manners. —Nolan Pierce

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Why a USB to Serial Cord Is Necessary

I find a USB to serial cord necessary because many older devices still rely on serial communication, even though most modern computers no longer include a serial port. My laptop may have only USB ports, but I still need to connect to routers, industrial machines, microcontrollers, or diagnostic tools that use serial connections. This cord makes that possible without needing special hardware.

I also use it because it gives me a simple and reliable way to transfer data or configure devices. My work often involves setup, troubleshooting, or firmware updates, and a USB to serial cord helps me communicate directly with equipment in a stable way. It is especially useful when I need a connection that is lightweight, affordable, and easy to carry.

For me, this cord is important because it bridges old technology and new computers. My devices can stay useful longer, and I do not have to replace equipment just because it uses a serial interface. That makes it a practical tool for both personal and professional use.

My Buying Guides on Usb To Serial Cord

What I Look for First

When I shop for a USB to serial cord, I first make sure it matches the device I want to connect. I check whether I need RS-232, RS-485, or RS-422 support, because using the wrong type can cause connection problems. I also look at the connector on both ends, since some devices use DB9 while others may need different plugs.

Compatibility Matters Most

My biggest priority is compatibility. I always confirm that the cable works with my operating system, whether I’m using Windows, macOS, or Linux. I also check if the product needs special drivers. In my experience, a cord with broad plug-and-play support saves a lot of time and frustration.

Build Quality and Durability

I prefer a USB to serial cord that feels sturdy and well-made. A strong cable jacket, reinforced connectors, and good shielding help reduce wear and signal issues. If I plan to use it often, I choose one with a reliable chip inside and a cable length that fits my setup without unnecessary strain.

Data Transfer Stability

For me, stable communication is more important than just having a connection. I look for cords known for reliable data transfer and low error rates. If I’m using the cable for industrial equipment, networking gear, or programming devices, I want something that maintains a clean signal even over longer sessions.

Driver Support and Chipset

I pay attention to the chipset because it often affects performance. In my experience, well-known chipsets usually offer better driver support and fewer connection issues. I also like cords that are easy to install, especially when I need to get started quickly without troubleshooting.

Cable Length and Convenience

I choose the cable length based on how I work. A shorter cord is great for a clean desk setup, while a longer one gives me more flexibility when the device is farther away. I avoid buying a cable that is too long unless I really need it, because extra length can sometimes make the setup messy.

Price vs Value

I don’t always go for the cheapest option. Instead, I look for the best value. A slightly more expensive USB to serial cord is often worth it if it offers better compatibility, stronger build quality, and dependable support. For me, saving a little money upfront is not worth repeated connection problems later.

My Final Advice

If I were buying a USB to serial cord today, I would focus on compatibility, chipset quality, and durability first. Once those basics are covered, I would choose the cable length and connector type that best fit my needs. That approach has helped me avoid mistakes and get a product that works well from the start.

Final Thoughts

I see the USB to serial cord as a simple but essential tool for connecting modern computers with older devices. My key takeaway is that it can make setup, troubleshooting, and data transfer much easier when the right cable and drivers are used. I also think it is important to choose a reliable cord that matches your device’s serial standard for the best results.

Author Profile

Kristie Pacheco

Kristie Pacheco is the writer behind Digital Woman Award, an informational blog focused on everyday aspects of womanhood and female lifestyle. With a background in communication and digital content, she has spent years working with lifestyle and wellness topics aimed at making information easier to understand. Kristie started Digital Woman Award in 2025 after noticing how often women struggle to find clear, balanced explanations online.

Her writing is calm, practical, and grounded in real-life context. Through this site, she aims to support informed thinking by breaking down common questions with clarity, care, and everyday relevance.

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