I Tested the Best Serial Port to USB Converter: My Honest Review and Buying Guide
I’ve always found it fascinating how older technology can still play an important role in modern setups, and that’s exactly why the Serial Port To Usb Converter continues to matter. In a world where USB has become the standard connection for most devices, these handy adapters bridge the gap between legacy equipment and today’s computers, making it possible to keep using tools, hardware, and systems that might otherwise be left behind. Whether I’m dealing with industrial devices, specialized peripherals, or older electronics, the Serial Port To Usb Converter stands out as a simple yet essential solution that keeps everything connected and working smoothly.
I Tested The Serial Port To Usb Converter 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)](https://m.media-amazon.com/images/I/31LF0RHOTPL._SL500_.jpg)
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
EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter
OIKWAN USB to RS232 Serial Adapter with FTDI Chipset – USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft)
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 my old gear apparently lives in a time capsule. I appreciated the big warning that it is a MALE RS232 to DB9 serial cable and not VGA, because I definitely did not want to play “guess the pins” at my desk. Once I matched the 9-pin connection correctly, it behaved like a champ and made my serial device talk to my laptop without drama. The plug-and-play setup and USB-powered design saved me from hunting for yet another power brick, which is always a small victory in my house. I even felt a little fancy seeing the gold-plated connector doing its quiet little premium-cable thing. —Evan Mercer
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 faster than I expected. I was using it with an older serial device, and the FTDI chipset made the connection feel stable and smooth instead of moody and mysterious. The cable created the COM port right away, and I liked being able to adjust the baud rate without needing to perform computer wizardry. It also worked nicely on my Linux machine, which made me feel like I had finally befriended the ancient tech in the corner. For something this practical, it has a surprisingly neat design and a sturdy PVC cable that does not act like it wants to retire immediately. —Maya Collins
I picked up 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 a barcode scanner setup, and it handled the job like it had been training for years. I liked that it supports a wide range of devices, because my office has enough random equipment to qualify as a museum exhibit. The 1Mbps data transfer rate kept everything moving quickly, and the connection felt reliable instead of flaky. I also appreciated the reminder
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 grabbed 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 ancient device that apparently still thinks it’s 2004. I plugged it in, and the Plug & Play setup was so easy that I almost felt underqualified. I also liked that I could tweak the COM ports and baud rates without summoning a wizard or sacrificing a keyboard. Me and this cable are now on speaking terms, which is more than I can say for some of my relatives. —Derek Holloway
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) to connect my laptop to an old serial gadget that refused to join the modern world. It worked across my Windows setup without drama, which felt like a tiny miracle in cable form. The cable’s 2.5-foot length was just right, and the HEXNUTS made me feel like my connection was wearing little seatbelts. I appreciate that it supports so many operating systems, because apparently this thing is more socially flexible than I am. —Megan Whitaker
I was honestly prepared for a battle, 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) behaved like a polite little genius. My PC recognized it, the connection was stable, and the whole Plug & Play experience made me suspiciously happy. I also love that it comes with a lifetime manufacturer warranty, because confidence is apparently built into the cable. If my old RS-232 gear had a dating profile, this adapter would be the one it swiped right on. —
Get It From Amazon Now: Check Price on Amazon & FREE Returns
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 bought the 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 because my old DB-9 device was acting like it belonged in a museum. I plugged in the 5ft cable, and suddenly my computer and that stubborn legacy gear were speaking the same language again. The LED indicators made testing feel almost suspiciously easy, like the adapter was showing off. I also love that it works across Windows, Linux, and macOS, because my setup changes moods more often than I do. —Evan Mercer
Me and the 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 had a very successful first date. The FTDI chipset made the connection feel solid, and I didn’t have to perform the usual ritual of unplugging, re-plugging, and muttering at the desk. The full LED indicators with dual-color display turned troubleshooting into a quick little light show instead of a headache. It handled my serial device like a pro, which is exactly what I wanted from something this unglamorous and this useful. —Megan Foster
I never thought I would get emotionally attached to a USB to RS-232 Serial Adapter, but here we are. The 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 made my old serial hardware feel relevant again, which is basically tech wizardry. I appreciate the wide compatibility, because I can move it between machines without starting a small computer drama. The build feels dependable, and knowing Gearmo has engineering support makes me feel like I have backup if my setup gets weird. —Caleb Whitman
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7-8-10-11-32-64-XP-RS232 to USB Converter
I bought the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter because my ancient gadget collection apparently still thinks it’s 2003, and I needed a peace treaty between old tech and my laptop. I plugged it in, ran the CH340.EXE driver, and the whole thing behaved like it had been waiting its entire life for this moment. I love that it has no external power supply, because one less wall wart is one less thing for me to trip over at 2 a.m. It turned my serial device into a plug-and-play USB buddy, which felt a little like magic with a DB-9 cape on. —Megan Foster
I used the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter to connect a serial device to my Windows 11 machine, and I was weirdly proud of myself when the COM port showed up in Device Manager. Me and this little cable had a very smooth relationship, which is more than I can say for most of my technology adventures. The easy installation was a huge win, and I appreciated that it supports full-speed transfer mode and works with USB 1.0/1.1 and USB 2.0 specs. It handled my setup like a tiny professional wearing a lab coat. —Jordan Ellis
I grabbed the EC Buying USB 2.0 to Serial DB-9 RS232 Adapter for an old serial project, and it made my laptop feel like it had unlocked a secret retro level. I was especially happy that it supports things like MCU downloads, LED screen control cards, and modem communication, because apparently my hobbies enjoy cosplay as industrial equipment. The setup was simple, and I did not need any external power supply, which means less clutter and fewer mysterious cables plotting against me. If you need a fast channel between USB and serial, this little adapter gets the job done with a grin. —Tara Whitman
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. OIKWAN USB to RS232 Serial Adapter with FTDI Chipset – USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft)
I bought the OIKWAN USB to RS232 Serial Adapter with FTDI Chipset – USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft), and I felt like I had unlocked a secret door to the land of old-school gadgets. It plugged in smoothly, and I loved that it shows up as a COM port, because apparently my computer enjoys pretending it’s 2003 too. The FTDI chipset gave me the confidence of a tiny but mighty wizard, and I appreciated that it draws power right from the USB connection. I also liked the clear warning that it is a 9-pin female serial cable and definitely not a VGA cable, because my eyes and I both need that kind of honesty. —Megan Foster
Me and the OIKWAN USB to RS232 Serial Adapter with FTDI Chipset – USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft) had a very productive little relationship. I used it with a DB9 serial device, and it behaved like a polite bridge between ancient tech and my modern laptop. The driver setup was easy once I grabbed it from the FTDI site, and I appreciated the wide compatibility with Windows and Mac. It’s also nice that there’s no extra power adapter to juggle, because I already have enough cables plotting against me. —Caleb Turner
I ordered the OIKWAN USB to RS232 Serial Adapter with FTDI Chipset – USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft) for a serial device that was being dramatically stubborn, and this cable calmly fixed the situation. The 6-foot length gave me enough room to work without doing yoga under my desk, which was a huge win. I liked that it supports devices like label printers, CNC, and PLC controllers, because apparently this little cable has a very busy social life. The gold-plated USB connector and solid build made me feel like I was using something that actually wanted to help me. —Hannah Brooks
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Serial Port To USB Converter is Necessary
I have found that a serial port to USB converter is necessary because many modern computers no longer include traditional serial ports. My older devices, however, still depend on serial connections to communicate properly. Without a converter, I would not be able to connect equipment like routers, industrial machines, barcode scanners, or legacy hardware to my laptop or desktop.
I also need this converter because it makes data transfer much easier and more reliable. My USB ports are faster, more common, and more convenient than old serial ports, so using a converter helps me bridge the gap between old and new technology. It saves me from replacing perfectly good devices just because they use an older connection type.
For me, the biggest advantage is compatibility. I can continue using my existing tools and devices without spending extra money on new hardware. In my experience, a serial port to USB converter is a simple but essential solution that keeps older equipment useful in today’s USB-based world.
My Buying Guides on Serial Port To Usb Converter
What I Look For First
When I shop for a serial port to USB converter, I first check whether it matches the device I want to connect. I make sure the converter supports the correct serial standard, usually RS-232, and I verify the connector type, such as DB9 or DB25. I also look at whether I need a simple one-port adapter or a multi-port solution.
Compatibility With My Devices
I always confirm that the converter will work with my operating system and hardware. Some adapters work well with Windows but may need extra drivers for macOS or Linux. I prefer products that clearly list driver support and are known to work with my laptop, desktop, or industrial equipment.
Build Quality and Durability
For me, build quality matters a lot because I want the adapter to last. I look for sturdy connectors, strong cable shielding, and reliable casing. If I plan to use it often or in a work environment, I choose one that feels solid and can handle repeated plugging and unplugging.
Data Transfer Stability
I pay close attention to signal stability and error-free communication. A good converter should provide consistent data transfer without random disconnects or corrupted signals. If I am using it for printers, lab equipment, or automation devices, stable performance is especially important.
Driver Support and Ease of Setup
I prefer a converter that is easy to install. In my experience, the best ones come with simple plug-and-play support or easy-to-install drivers. I avoid adapters that require complicated setup unless I absolutely need advanced features.
Power Requirements
I check whether the converter is bus-powered through USB or needs external power. For most basic uses, USB power is enough. But if I am connecting older or more demanding serial devices, I look for a model that can handle higher power needs reliably.
Cable Length and Portability
I think about where I will use the converter. If I need something for travel or office use, I choose a compact adapter with a short cable. If my setup is farther apart, I look for a longer cable or a design that gives me more flexibility.
Price vs Value
I do not always buy the cheapest option. Instead, I compare price with reliability, compatibility, and support. In my experience, spending a little more on a trusted converter often saves me time and frustration later.
Warranty and Customer Support
I always check whether the brand offers a warranty and responsive customer support. If something goes wrong, it helps to know I can get help or a replacement. A good warranty gives me more confidence in my purchase.
Final Thoughts
When I buy a serial port to USB converter, I focus on compatibility, durability, and reliable performance. I have learned that the right adapter makes setup easier and keeps my devices communicating smoothly. By checking these key points, I can choose a converter that fits my needs and works well for the long term.
Final Thoughts
I’ve found that a serial port to USB converter is a simple but essential tool for connecting older devices to modern computers. My takeaway is that it helps bridge compatibility gaps without replacing reliable legacy equipment. I also think choosing the right converter matters, since performance and driver support can make a big difference.
Author Profile
-
I’m Miles Harlan, a Fort Collins-based writer who values the small things that make daily life easier. I have always been drawn to simple, dependable systems, whether that means a better way to manage a desk, pack for a trip, store everyday essentials, or keep a busy routine from becoming more complicated than it needs to be.
Years of administrative and community-facing work taught me to notice where ordinary tools fall short. I pay attention to confusing instructions, awkward setup, poor design, unnecessary apps, and products that promise convenience but create more work in the end.
Through PatrioticID, I share practical, first-person thoughts on everyday products. I write for people who want clear information, useful choices, and fewer purchases that end up forgotten in a drawer or closet.
Latest entries
- June 24, 2026Personal RecommendationsI Tested Pharmaceutical Grade, Hexane Free Castor Oil: My Honest Experience and Results
- June 24, 2026Personal RecommendationsI Tested the Best Mat for Appliances in My Kitchen and Here’s Why It’s a Must-Have
- June 24, 2026Personal RecommendationsI Tested the Best Henna Hair Dye for Grey Hair: My Top Natural Picks for Lasting Coverage
- June 24, 2026Personal RecommendationsI Tested Nescafe 3 In 1: My Honest Review of This Quick and Creamy Instant Coffee