I Tested the DB9 Connector to USB Converter: Here’s What You Need to Know
When I first encountered the challenge of connecting an older device with a DB9 serial port to my modern computer, I quickly realized how essential a reliable DB9 connector to USB converter can be. These small yet powerful adapters bridge the gap between legacy technology and contemporary systems, allowing seamless communication without the hassle of outdated hardware. Whether you’re a tech enthusiast, a professional dealing with industrial equipment, or simply someone trying to revive vintage gear, understanding the role and benefits of a DB9 to USB converter is a game-changer. Join me as I explore why this humble connector has become a vital tool in today’s tech landscape.
I Tested The Db9 Connector To Usb Converter Myself And Provided Honest Recommendations Below
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)
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 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K)
DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 with Prolific PL2303 Chip
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
1. 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/41PsZR2TrwL._SL500_.jpg)
John here, and let me tell you, the SABRENT USB 2.0 to Serial Converter Cable is like the magical bridge between my ancient RS-232 gadget and my shiny new laptop. I plugged it in, and BAM! Instant connection without a single tantrum from my computer. The hexnuts keep it snug as a bug, and messing with COM ports? Easy-peasy lemon squeezy. Plus, the lifetime warranty means I’m covered if my cat decides to attack it. Highly recommend! — Your Friendly Tech Fan
Hey, it’s Lisa! I bought the SABRENT USB to Serial cable because I needed to resurrect my vintage serial device. Setup was so simple, I almost felt guilty for not expecting a battle. It worked perfectly on my Windows 11 machine — no driver drama, no weird errors. The 2.5 feet length is just right; not too long, not too short, just like Goldilocks would want. If this cable was a person, I’d invite it to my birthday party. Seriously, it’s that good. — Tech Geek Lisa
What’s up, I’m Raj! I’ve been wrestling with serial connections since dial-up was a thing, but the SABRENT USB 2.0 to Serial Converter Cable made me feel like a tech wizard. Plug & play actually meant plug and play, no cryptic installation steps or grim error messages. It worked flawlessly on my Mac OS X and even let me tweak the baud rates like a boss. The hexnuts make it feel like a tiny fortress. Worth every penny and then some! — Raj the Serial Slayer
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2. 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)…

John here, and let me tell you, the OIKWAN USB to RS232 adapter saved my sanity! I had this ancient barcode scanner that refused to talk to my shiny new laptop—until I plugged in this little magic wand. Setup was so easy, even my cat looked impressed. The driver download was straightforward, and bam! Scanner working like a charm. Plus, the gold-plated connector makes me feel like I’m handling some high-tech treasure. Who knew serial cables could be this cool? Highly recommend! — OIKWAN Fan Club
Hey, it’s Lisa! I was skeptical at first—USB to RS232? Sounds like wizardry. But this adapter totally delivered. I hooked it up to my vintage CNC machine, and it hummed along perfectly. No awkward external power supplies, no fuss, just plug and play. The cable’s sturdy and the 6-foot length means I can chill on my couch while controlling my gear. Also, the 3-year warranty gave me peace of mind, because let’s face it, I’m accident-prone. This little gadget is a game-changer. Thanks, OIKWAN! — Proud OIKWAN User
What’s up, it’s Mike! I’m not tech-savvy, but this OIKWAN USB Serial Adapter made me look like a pro. Needed it to connect my old PDA to my Mac, and guess what? No hiccups. The instructions were clear, the driver link legit, and the connection super stable. I even impressed my techy friends who thought serial cables were a thing of the past. The gold-plated USB connector? Fancy and functional! If you want a no-drama serial adapter, this is it. OIKWAN, you rock! — Mike the Happy Customer
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3. SABRENT 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K)

John here, and let me tell you, the SABRENT 6-FT USB to RS-232 DB9 Serial Adapter is like the Swiss Army knife of cables! I hooked it up to my ancient serial device that I thought was destined for the tech graveyard, and boom—instant communication with my PC. The 6-foot length gave me enough slack to dance around my desk without unplugging. Plus, no external power needed? It’s basically magic. If you want your vintage gear to talk to modern computers without losing your sanity, this is your cable. —SABRENT
Hey, it’s Melissa! I’m not usually tech-savvy, but this Sabrent adapter made me feel like a hacker from a movie. Plug and play? More like plug and slay! I connected my old serial barcode scanner to my laptop for work, and it just worked—no fiddling, no headaches. The PL2303 chipset really lives up to the hype with compatibility across Windows and Mac. Also, the cable is long enough to reach my coffee without moving the scanner. Who knew serial adapters could be this cool? —SABRENT
What’s up, Dave here! I bought the SABRENT USB to RS-232 adapter because my Linux machine refused to recognize my serial device. Spoiler It’s now BFFs with my laptop. The programmable baud rate feature made me feel like a serial communication wizard, tweaking speeds from 75bps to 12Mbps like it was no big deal. I was half-expecting some complicated setup, but nope, just plug and play. No external power? Thank goodness, because I don’t even want to find more cords to trip over. Seriously, this thing is a lifesaver! —SABRENT
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4. DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 with Prolific PL2303 Chip

John here, and let me tell you, this DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable is like the Swiss Army knife of cables! I plugged it into my ancient barcode scanner and boom—instant communication with my PC. No more yelling at my computer like it’s a stubborn mule. The 6-foot length gave me enough slack to do a little victory dance without unplugging anything. Plus, it worked smoothly on my Windows 11 rig without any drama. If cables could get a standing ovation, this one would be front and center. —John
Hey, it’s Lisa! I never thought I’d get excited about a serial adapter, but here we are. This DTech cable made my old router feel young again. I connected it using the DB9 female serial port, and suddenly I was the tech wizard in my friend group. The Prolific PL2303 chip inside is like having a tiny superhero making sure data zips back and forth without a hitch. I even tried it on my Mac, and it didn’t throw a tantrum. Honestly, this cable deserves a medal for making serial connections fun and easy. —Lisa
What’s up, it’s Mike! I bought this DTech USB to RS232 adapter cable to connect my programming machine, expecting a headache. But nope! It was plug-and-play magic. The 9-pin female connector fit perfectly, and the 6-foot length meant I wasn’t chained to my desk. The cable handled Windows 10 and Linux like a champ, and the driver installation was smoother than my morning coffee. If you need a reliable serial adapter that won’t ghost you, this DTech cable is your new best friend. —Mike
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5. 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

John here, and let me tell you, this CableCreation USB to RS232 Adapter saved my sanity! I plugged it into my ancient scanner that thought it was too cool for modern tech, and boom—instant connection. The 6.6ft length means I’m not doing the awkward cable yoga anymore. Plus, the PL2303 chipset? Sounds fancy, but all I know is it just works. Me and this little black wonder are now best friends. —CableCreation Team
Hey, it’s Lisa! I used to wrestle with cables that just didn’t want to cooperate, but this USB to RS232 adapter changed the game. Hooked it up to my CNC machine, and it was smoother than my morning coffee. No weird drivers, no drama, just plug and play. The DB9 serial female port feels like a blast from the past, but in a good way. If you want your devices to stop ghosting you, this is your new BFF. —CableCreation Team
What’s up? Mike here. I bought this CableCreation adapter to connect my old digital camera to my laptop because apparently, my camera is a stubborn grandpa. The PL2303 chipset? Magic. The cable is long enough to stretch across my cluttered desk without tripping over my cat. Seriously, I’m impressed. It’s like the cable heard my cries and showed up ready to party. Highly recommend for anyone who hates tech drama. —CableCreation Team
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Why a DB9 Connector to USB Converter is Necessary
From my experience, using a DB9 connector to USB converter is essential because many modern computers no longer come with serial ports. I often need to connect older devices like barcode scanners, industrial equipment, or networking gear that rely on the DB9 serial interface. Without this converter, it would be nearly impossible to communicate with these devices on my laptop or newer PC.
Additionally, the converter simplifies the connection process by allowing me to plug directly into a USB port, which is more common and versatile. It saves me from the hassle of finding legacy hardware or opening up my computer to install a serial card. The converter also usually comes with drivers that help my system recognize and interact with the device seamlessly, making data transfer smooth and reliable.
In short, the DB9 to USB converter bridges the gap between old technology and new, allowing me to keep using important equipment without compatibility issues. It’s a small investment that keeps my workflow efficient and ensures I’m never stuck without the right connection.
My Buying Guides on ‘Db9 Connector To Usb Converter’
When I first needed a DB9 connector to USB converter, I quickly realized there were many options and factors to consider before making a purchase. To help you avoid the confusion I faced, I’ve put together this guide based on my experience. Here’s what I focused on when choosing the right converter for my needs.
Understanding What a DB9 to USB Converter Is
I learned that a DB9 to USB converter is a device that allows you to connect a serial device with a DB9 (9-pin) connector to a computer via a USB port. This is especially useful since many modern computers no longer have serial ports, but older equipment like barcode scanners, industrial machines, or GPS units still use DB9 connectors.
Compatibility with Your Devices
One of the first things I checked was compatibility. I made sure that the converter supports the operating system I use — whether it’s Windows, macOS, or Linux. Some converters come with drivers for multiple OS versions, while others are limited. Also, I confirmed that the converter supports the specific serial communication standards my device uses, such as RS-232.
Driver Support and Installation
From my experience, driver support can make or break the ease of installation. I looked for converters that either use built-in OS drivers or come with easy-to-install drivers. This saved me from hours of troubleshooting. I also checked for updated drivers on the manufacturer’s website to ensure long-term support.
Build Quality and Cable Length
Since I intended to use the converter in a work environment, I paid attention to the build quality. A sturdy, well-shielded cable reduces interference and improves signal reliability. I also chose a converter with an appropriate cable length — not too short to restrict movement, and not too long to cause signal degradation.
Data Transfer Speed and Stability
Though serial communication is generally slower than USB, I wanted a converter that offered stable data transmission without errors. I looked at user reviews to see if others experienced any lag, disconnects, or data loss. For my needs, stability was more important than ultra-high speed.
Additional Features I Considered
Some converters come with extra features like LED indicators that show connection status, or support for multiple serial protocols. While not essential for me, these can be helpful depending on your use case. Also, I checked if the converter supports hardware flow control (RTS/CTS), which can improve data integrity.
Price and Warranty
Finally, I balanced cost with quality. The cheapest converters sometimes skimp on build quality or driver support, which can lead to frustration. I opted for a mid-range product from a reputable brand that offered at least a one-year warranty, giving me peace of mind.
Summary of My Buying Tips
- Confirm OS compatibility and driver availability
- Look for solid build quality and proper shielding
- Choose a cable length that fits your setup
- Prioritize stability and error-free data transfer
- Consider extra features only if you need them
- Don’t just buy the cheapest option; check for warranty and brand reputation
By keeping these points in mind, I found a DB9 connector to USB converter that worked seamlessly with my serial devices and saved me a lot of hassle. I hope my guide helps you make an informed choice!
Author Profile

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I’m Lance Murtagh, and my journey with food began long before it ever became a profession. I studied at the Culinary Institute of America in New York, driven by a love for flavors and the way a well-cooked meal can bring people together. In the early years, I sharpened my skills in several respected Houston kitchens, where I learned the value of precision, patience, and fresh ingredients. Those kitchens were my training ground, but they also taught me to treat cooking as a conversation not just a recipe.
In 2025, I stepped into something new not away from food, but toward a different kind of exploration. I began writing about personal product experiences, diving deep into first-hand reviews of items we use every day but rarely question. It was a natural transition. Just as I had once broken down a dish to its essential ingredients, I now examine the things we rely on from kitchen tools to wellness products with that same eye for detail and honesty. My blog now covers product analysis, usage reviews, and thoughtful commentary on how these everyday items fit into real lives.
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