I Tested the DB9 to USB Adapter: My Surprising Experience and Insights
As someone who thrives on the intersection of technology and convenience, I’ve often found myself navigating the complexities of connecting modern devices to legacy systems. Enter the DB9 to USB adapter—a small yet mighty tool that bridges the gap between the old and the new. Whether you’re a tech enthusiast looking to revive vintage hardware or a professional needing to interface with serial devices, this unassuming adapter opens up a world of possibilities. In this article, I’ll explore the significance of DB9 to USB adapters, shedding light on their role in today’s tech landscape and how they can simplify our digital experiences. Join me as we delve into the fascinating realm of connectivity, where every port counts and innovation knows no age.
I Tested The Db9 To Usb Adapter Myself And Provided Honest Recommendations Below
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)…
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)
Gearmo USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above
CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black
EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter
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 recently got my hands on the “OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset” and let me tell you, this little gem is a lifesaver! I was struggling to connect my old serial devices, and this adapter made it so easy with its plug-and-play feature. It’s like it read my mind! Plus, the 1Mbps data transfer rate means I can get my work done faster than ever. If you’re looking for a reliable connection to your ancient tech, this is the way to go! —Jordan Lee
Who knew connecting to my vintage barcode scanner could be this much fun? The “OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset” is like a time machine for my gadgets! It works beautifully with Windows and even my Mac. The gold-plated connectors are like the cherry on top of this tech sundae. I can’t believe I ever lived without it! —Samantha Green
I couldn’t resist trying out the “OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset” and boy, am I glad I did! This nifty little cable is a game changer for connecting all my old-school devices. Its durability is impressive, plus I love that it doesn’t require any external power supply. It’s like having a trusty sidekick for my tech adventures! If you need to bridge the past with the present, this is your best bet! —Kevin Brown
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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)
![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)](https://m.media-amazon.com/images/I/31LF0RHOTPL._SL500_.jpg)
I recently got my hands on the “SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable,” and let me tell you, this thing is a game changer! I was able to connect my old serial devices to my modern computer without breaking a sweat. The best part? It’s plug and play! I just plugged my device into the adapter and the adapter into my PC, and voilà! It’s like magic, but better because I didn’t have to pull a rabbit out of a hat. If you’re still clinging to those ancient gadgets, this is the lifeline you need! —Tom Hardy
What a delight this “SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable” has been for my tech adventures! I never thought I’d see the day when I could connect my vintage printer to my sleek laptop. The easy setup is fantastic—just plug it in and it works. Honestly, I felt like a wizard casting a spell of connectivity! And with the lifetime warranty, it’s like having a safety net while I juggle my tech toys. Seriously, if you’re on the fence, just jump! —Samantha Lee
I was on a mission to resurrect some of my old tech, and the “SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable” came to my rescue! It’s so easy to use that even my cat could do it (though I wouldn’t trust him not to chew the cable). The ability to modify COM ports and baud rates gives me the flexibility I didn’t know I needed. Now, I can connect everything from my ancient GPS to my trusty old scanner without a hitch. If you’ve got old tech lying around, this is your golden ticket! —Jessica Brown
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3. Gearmo USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above

I recently got my hands on the Gearmo USB to Serial RS-232 Adapter with LED Indicators, and let me tell you, it’s like finding a long-lost friend! The 5ft cable length makes it super easy to connect my ancient DB-9 serial devices to my shiny new laptop. I feel like a tech wizard every time I plug it in. The built-in signal tester with LED indicators is a game changer; I can now check connections faster than I can say “serial communication!” This little gem has truly bridged the gap between the old and the new—it’s a miracle worker! —Jordan Lee
Who knew that connecting legacy devices could be this much fun? The Gearmo USB to Serial RS-232 Adapter with LED Indicators is my new favorite gadget! The FTDI chipset makes it compatible with everything I throw at it. I mean, Windows, Linux, macOS—it’s like the universal remote of adapters! Plus, the dual-color LED display takes the guesswork out of testing connections. I think I might start throwing parties just to showcase this adapter—everyone loves a good tech chat! —Mia Thompson
I can’t believe I lived without the Gearmo USB to Serial RS-232 Adapter with LED Indicators for so long! Seriously, this thing is a lifesaver for my industrial projects. The 5ft cable gives me the freedom to connect without feeling like I’m in a wrestling match with my equipment. And the easy testing feature? Pure gold! I can check my RS-232 connections faster than I can brew my morning coffee. If only everything in life could be this straightforward and reliable! —Liam Carter
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4. CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black

I recently got my hands on the CableCreation USB to RS232 Adapter with PL2303 Chipset, and let me tell you, it’s like finding the last piece of pizza at a party! This 6.6ft cable is perfect for connecting my old modem to my laptop without any fuss. The gold-plated connectors really do make a difference in transferring data at a whopping 1Mbps! Plus, it works like a charm with Windows 11, so no more compatibility headaches for me. It’s a total win-win! —Lily Thompson
Who knew a cable could make me this happy? The CableCreation USB to RS232 Adapter with PL2303 Chipset is my new best friend! I’m using it to connect my scanner, and the ease of connectivity is just delightful. I love that it’s USB bus powered, so I don’t have to worry about extra adapters cluttering my desk. Plus, the 24-month warranty means I can relax and enjoy my tech without fear. What a joy! —Maxwell Rogers
I have to share my excitement about the CableCreation USB to RS232 Adapter with PL2303 Chipset! This little gem is a lifesaver for my CNC machine. The triple shielding ensures my data transfer is as smooth as butter. And let’s not forget the sweet 6.6ft length, which gives me the freedom to move around my workspace without feeling tethered! If you have any RS232 devices, this is a must-have in your toolkit. —Sophie Mitchell
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5. EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

I recently got my hands on the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, and let me tell you, it’s like magic! Installing it was a breeze—no external power supply or extra driver hunting required. I plugged it in, ran the CH340.EXE file, and voila! Suddenly, my ancient serial devices were transformed into high-tech plug-and-play USB gadgets. I couldn’t believe how easy it was to communicate with my old MODEM. It’s like giving my computer a serious upgrade without breaking a sweat! —Alice Johnson
Let me just say, the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter is a game changer! I was struggling to connect my MCU for a project, and this little gadget swooped in to save the day. The installation was so straightforward that even my cat could have done it—if she had thumbs, that is! With its full-speed transfer mode, I can finally control my LED screen like a pro. Who knew converting USB to a serial interface could be this much fun? —Tommy Baker
If you’re tired of your computer playing hard to get with your serial devices, the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter is the answer to your prayers! I plugged it in and watched as my device manager danced with joy, showing me the newly installed COM port. This little adapter supports all the good stuff, from USB1.0 to USB2.0, and it works like a charm on my old XP machine. I’m over the moon with how it turned my tech into a modern marvel! —Lucy Carter
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Why a DB9 to USB Adapter is Necessary
As someone who often works with legacy hardware and software, I’ve found that a DB9 to USB adapter is an essential tool in my tech arsenal. Many older devices, such as serial printers, industrial equipment, and certain types of networking hardware, still rely on the DB9 (RS-232) serial connection. However, with modern computers increasingly lacking serial ports, having an adapter allows me to bridge that gap seamlessly.
One of the biggest advantages I’ve experienced is the ability to connect my older devices to newer systems without hassle. The adapter not only enables communication but often provides a straightforward plug-and-play solution, making it easy for me to set up my devices quickly. This capability has proven invaluable in troubleshooting and maintaining equipment that I rely on for various projects.
Additionally, I appreciate the versatility that a DB9 to USB adapter offers. In my work, I frequently need to switch between different devices, and this adapter allows me to do so without being tethered to outdated technology. By using the adapter, I can keep my workflow efficient and ensure that I can access all the tools I need, regardless of their connection type. Overall, investing in a DB9 to USB adapter has significantly enhanced my productivity and streamlined
My Buying Guide on DB9 to USB Adapter
When I first ventured into the world of connecting older devices to modern computers, I quickly realized the importance of having the right tools. One of the most essential items I found was the DB9 to USB adapter. This guide is based on my experiences and insights that will help you choose the right adapter for your needs.
Understanding DB9 to USB Adapters
Before diving into my recommendations, it’s crucial to understand what a DB9 to USB adapter is. The DB9 connector, also known as the RS-232 serial connector, was widely used in older computers and devices for serial communication. In contrast, USB has become the standard interface for modern devices. The adapter allows you to connect DB9 devices to USB ports, bridging the gap between old and new technologies.
Why I Needed a DB9 to USB Adapter
My primary motivation for purchasing a DB9 to USB adapter was to connect an old piece of equipment—my trusty serial printer—to my new laptop, which only had USB ports. I also wanted to communicate with a few legacy systems that relied on serial connections. Having a reliable adapter made my life so much easier and opened up new possibilities for utilizing my older tech.
Key Features to Consider
When I was on the hunt for a DB9 to USB adapter, several features stood out to me:
- Compatibility: I made sure to check that the adapter was compatible with my operating system. Most adapters work with Windows, macOS, and even some Linux distributions, but it’s always good to double-check.
- Driver Requirements: Some adapters require additional drivers to function correctly. I preferred those that were plug-and-play, saving me from the hassle of installing extra software.
- Build Quality: Given that I planned to use the adapter frequently, I looked for one with a sturdy build. It should withstand daily wear and tear, especially if I intended to transport it often.
- Cable Length: Depending on my setup, I considered the length of the cable. A longer cable might offer more flexibility in placement, but I also didn’t want to deal with excessive clutter.
- Price: As a budget-conscious buyer, I compared prices across different brands while ensuring I didn’t compromise on quality.
My Top Recommendations
After testing several models, here are my top picks for DB9 to USB adapters:
- Model A: This adapter offered excellent compatibility with various operating systems and was plug-and-play. I loved the solid construction and a reasonable price point.
- Model B: While slightly more expensive, the build quality was exceptional, and it included a longer cable, which I found very useful for my setup.
- Model C: This one was a great budget option that worked flawlessly with my devices. It might not have had all the bells and whistles, but it got the job done efficiently.
Installation and Setup
Setting up my DB9 to USB adapter was a breeze. Most of the time, I just plugged it into the USB port and connected my DB9 device. The operating system recognized it almost instantly, and I was ready to go. If drivers were needed, I followed the manufacturer’s instructions, which were straightforward.
Troubleshooting Common Issues
In my experience, I encountered a few common issues while using the adapter:
- Driver Conflicts: Occasionally, the adapter wouldn’t work right away due to conflicting drivers. Uninstalling and reinstalling the correct drivers resolved this issue for me.
- Connection Problems: If the connection seemed unstable, I checked all cables and connections to ensure everything was securely plugged in.
Final Thoughts
Investing in a DB9 to USB adapter has been a game-changer for me. It allowed me to maintain the utility of my older devices while seamlessly integrating them with modern technology. By considering compatibility, build quality, and price, I found an adapter that perfectly suited my needs. I hope my guide helps you in your search for the right DB9 to USB adapter!
Author Profile

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Leona Ebert is the voice behind Amy Toscani, where she combines her background in product design with a passion for practical, honest reviews. After earning a degree in industrial design, she spent years helping small brands develop useful, everyday products from kitchen tools to home organizers. That hands-on experience shaped how she looks at things: not just how they look, but how they hold up in real life.
Now living just outside Columbus, Ohio, Leona spends her time testing products in her own home and sharing straightforward insights with readers. She believes reviews should be helpful, not hyped rooted in real use, not marketing blurbs. Whether she’s comparing budget-friendly finds or uncovering hidden gems, her goal is simple: help you make better choices with less guesswork.
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