Unlocking Connectivity: My First-Hand Experience with the USB-C to Serial Adapter

As technology continues to evolve at a breakneck pace, I often find myself navigating the complexities of connecting various devices. One tool that has proven indispensable in my tech arsenal is the USB-C to Serial Adapter. In a world where USB-C has emerged as the universal standard for connectivity, this adapter serves as a bridge to the legacy serial devices that still play a crucial role in many industries. Whether I’m working on a vintage piece of equipment, debugging a microcontroller, or simply transferring data between devices, this little gadget makes it all possible. Join me as I explore the fascinating world of USB-C to Serial Adapters, uncovering their significance, functionality, and the ways they can enhance our tech experiences.

I Personally Tried the USB C to Serial Adapter and Here Are My Honest Recommendations

1. OIKWAN USB Type C to RS232 DB9 Serial Port Adapter Cable, FTDI Chipset, Supports Windows 11, 10, 8, 7 and Mac Linux

As I delve into the OIKWAN USB Type C to RS232 DB9 Serial Port Adapter Cable, I can’t help but appreciate its thoughtful design and robust functionality. This product stands out in a market saturated with tech accessories, primarily because it caters to a specific need connecting modern USB Type C devices to older RS-232 serial devices. The fact that it supports a wide range of operating systems, including Windows 11, 10, 8, 7, as well as Mac and Linux, makes it an incredibly versatile choice for users across different platforms.

One of the first things that caught my attention is the emphasis on the adapter’s compatibility. The inclusion of the FTDI-FT232RL chipset ensures that users experience optimal stability and compatibility with various serial COM ports. For anyone who has encountered connectivity issues with adapters in the past, this feature alone is a game changer. It’s reassuring to know that the OIKWAN adapter is designed for plug-and-play functionality, which means I won’t have to deal with cumbersome installation processes. A simple one-time driver installation from official sources, and I’m ready to go!

The clarity in the product description regarding the type of connections—specifically that it’s a male Type-C to DB9 serial cable—also deserves mention. As someone who has often faced confusion with product specifications, I appreciate the straightforwardness. It’s crucial for users to verify that they need a 9-pin connection rather than a 15-pin one, as well as ensuring that the interface gender matches their device. This attention to detail not only saves time but also prevents potential frustrations after purchase.

Performance-wise, the OIKWAN adapter supports data transfer rates of up to 1Mbps, which is impressive for a USB-C to RS-232 converter. This ensures that I can efficiently transfer data between my PC or laptop and RS-232 devices without lag or interruption. This is particularly beneficial for professionals who rely on real-time data communication, such as engineers or technicians working with legacy systems.

The customer service aspect also gives me peace of mind. With 24-months of worry-free support, I can rest assured that assistance is readily available should I encounter any issues. The constant availability of customer service is a strong selling point, especially for those who may not be as tech-savvy. The fact that there’s a manual provided, alongside instructions for downloading the necessary driver, shows that OIKWAN is dedicated to ensuring a smooth user experience from the moment I open the package.

the OIKWAN USB Type C to RS232 DB9 Serial Port Adapter Cable is a highly functional product that addresses a specific need in a seamless manner. Whether I am a professional needing to connect to legacy systems or a tech enthusiast exploring new devices, this adapter makes the task straightforward and efficient. The combination of a reliable chipset, ease of use, and attentive customer support makes this product a worthy investment for anyone looking to bridge the gap between modern and older technology. If you’re in the market for a dependable serial port adapter, I strongly encourage you to consider the OIKWAN adapter as it could very well be the solution you’ve been searching for.

Feature	Details
Type	USB Type C male to RS232 DB9 male
Compatibility	Windows 11, 10, 8, 7, Mac, Linux
Chipset	FTDI-FT232RL
Data Transfer Rate	Up to 1Mbps
Installation	Plug and play after one-time driver installation
Customer Support	24-months worry-free support

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2. Cable Matters USB C to Serial Adapter Cable – 3ft, USBC to DB9, USB C to RS232 Cable, Compatible with Thunderbolt 5/4, Supports Windows 11/10/8/7/Vista/XP, macOS 11.0 or Later

As someone who frequently works with various tech devices, I can confidently say that the Cable Matters USB C to Serial Adapter Cable is a game changer. This 3-foot cable offers a direct USB C to RS232 connection, which makes it incredibly easy to connect my USB-C equipped devices to equipment that requires a DB9 port. Whether I’m configuring CNC machines, programming GPS units, or even connecting to older devices like telescopes or sewing machines, this adapter cable serves as a vital link that simplifies my workflow.

The flexibility of this product is another significant advantage. The male-to-male design allows me to utilize this cable for seamless interaction with a variety of devices that require a DB9 connection. If I ever encounter a situation where I need to connect to different port types, the option to use a DB9 mini gender changer (sold separately) is quite helpful. This versatility means I don’t have to worry about compatibility issues that can often arise when dealing with older technology.

I also appreciate how effortless the setup is with this USB C to DB9 adapter. Installation is straightforward, thanks to downloadable drivers provided by Cable Matters. As someone who isn’t particularly tech-savvy, I find this feature reassuring and user-friendly. If I need to establish direct computer-to-computer serial connections, I can easily add a null modem adapter (sold separately) without any hassle. This simplifies what could otherwise be a complicated process.

Another standout feature is the extensive operating system compatibility. This cable works seamlessly with the latest versions of Windows (from 11 all the way back to XP) and macOS (11.0 or later). However, it’s important to note that some devices may require additional proprietary software, which could affect compatibility. I’ve had a smooth experience, but it’s always good to be aware of potential hiccups, especially when dealing with specialized equipment.

In terms of equipment compatibility, this cable excels. The RS-232 compatible USB C serial cable is essential for a wide range of devices, including CNC machines, GPS units, telescopes, set-top boxes, and Cisco network switches, among others. The sheer breadth of its compatibility ensures that I can rely on this adapter for many projects without needing to purchase multiple cables.

Feature	Details
Direct Connection	Connects USB-C port to devices with female DB9 port
Flexible Communication	Compatible with devices needing DB9 connection; can use gender changer
Easy Setup	Effortless installation with downloadable drivers
OS Compatibility	Works with Windows 11/10/8/7/Vista/XP and macOS 11.0+
Equipment Compatibility	Supports CNC machines, GPS units, telescopes, and more

if you’re in the market for a reliable USB C to Serial Adapter Cable, I wholeheartedly recommend the Cable Matters option. Its straightforward setup, wide compatibility, and extensive use cases make it an invaluable addition to any tech enthusiast’s toolkit. Whether you’re a professional relying on precision equipment or a hobbyist looking to connect your devices, this cable is sure to meet your needs. Don’t miss out on the opportunity to simplify your connections—this product is a worthwhile investment that will serve you well for years to come.

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3. SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT, Prolific PL2303GS Chipset, USB 2.0, 1bps-12Mbps Baud Rate, for POS Terminals, Modems, GPS, Industrial Devices (CB-D9C3)

When I first came across the Sabrent USB-C to DB9 Serial RS-232 Adapter Cable, I was immediately intrigued by its practicality and versatility. This 3-foot adapter cable is designed for those who need reliable connections for various devices, ranging from POS terminals and modems to GPS units and industrial devices. As someone who often works with a range of technology, I can genuinely appreciate the significance of having a reliable and efficient adapter at my disposal. The Prolific PL2303GS chipset ensures that I am using a high-quality product that is recognized for its durability and performance.

One of the standout features of this adapter is its USB 2.0 compatibility, which allows for data transfer rates from 1 bps up to an impressive 12 Mbps. This broad baud rate range provides flexibility, accommodating older devices that may require lower speeds while also supporting newer technology that benefits from faster data transfer. For me, this means that whether I am connecting to legacy equipment or the latest gadgets, I can count on this cable to deliver the performance I need.

The 3-foot length of the cable is another advantage. It strikes a balance between providing enough reach for comfortable use and being compact enough to avoid clutter. I often find myself needing to connect devices that are not always close together, and this length gives me the freedom to set up my workspace without feeling constrained. It’s also handy for travel, as I can easily pack it into my bag without worrying about it taking up too much space.

For those of us who work in industrial environments or with various tech equipment, the reliability of a connection is paramount. The Sabrent USB-C to DB9 adapter is built to withstand demanding use, ensuring that I can rely on it even in high-pressure situations. I have experienced connectivity issues with lesser cables in the past, and it’s frustrating to lose time troubleshooting a faulty connection. With this adapter, I feel confident that I can focus on my tasks without interruptions.

If you’re like me and frequently find yourself needing to connect different types of devices, the Sabrent USB-C to DB9 Serial RS-232 Adapter Cable is a practical choice that enhances productivity. Its combination of quality, performance, and versatility makes it an invaluable addition to any tech toolkit. I highly encourage you to consider this adapter for your connectivity needs. It’s a small investment that can save you time and headaches in the long run.

Feature	Description
Type	USB-C to DB9 Serial RS-232 Adapter Cable
Length	3 Feet
Chipset	Prolific PL2303GS
USB Version	USB 2.0
Baud Rate	1 bps – 12 Mbps
Compatibility	POS Terminals, Modems, GPS, Industrial Devices

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4. USB-C Cisco Console Cable,OIKWAN 6ft USB Type C to RJ45 Serial Adapter Essential Accessory of Cisco, NETGEAR, Ubiquity, LINKSYS, TP-Link Routers/Switches for Laptops

As a tech enthusiast and someone who frequently works with networking devices, I can confidently say that the OIKWAN USB-C Cisco Console Cable is a game changer for anyone looking to streamline their connectivity with Cisco devices. This 6ft cable is specifically designed for users like me who have PCs or laptops equipped with USB-C ports and need to connect to Cisco modems, routers, firewalls, switches, or any other serial-based Cisco devices. It’s refreshing to see a product that addresses a common issue with such precision and effectiveness.

One of the standout features of this cable is its compatibility with a wide range of devices. The USB Type C to RJ45 connection works seamlessly, allowing me to interface with Cisco routers and switches without any hassle. The FTDI FT232R chip combined with the RS232 Level Shifter ensures that my data transmission is reliable and efficient. I’ve used many cables in the past that promise compatibility but often fall short; this one truly delivers on its promise of working “like a charm.”

Another great aspect of the OIKWAN USB-C Cisco Console Cable is its broad compatibility with various operating systems. I appreciate that it works well with Windows 7, 8, 8.1, and 10 without needing to install additional drivers, as they are included in the OS distribution. For those of us who use macOS or Android, the manual installation of drivers is straightforward—just head over to the FTDI website for the necessary files. This flexibility means I can use it across my devices without worrying about compatibility issues.

The build quality is also noteworthy. The light blue color is not only aesthetically pleasing but also makes it easy to spot in a crowded workspace. The 3m (10 feet) length provides ample reach, which is a blessing when working in larger setups. I often find myself needing to connect devices that are not directly next to each other, and this cable allows me to do just that without feeling restricted. Plus, the peace of mind that comes with a 3-year warranty means that I can trust this cable to last through countless connections and disconnections.

If you’re someone who regularly manages Cisco networking equipment or is in the IT field, this cable is an essential accessory that will simplify your workflow. It’s designed for people like us—those who need effective solutions without the fuss. The OIKWAN USB-C Cisco Console Cable is not just another accessory; it’s a reliable tool that enhances productivity and reduces frustration during setup and maintenance tasks.

I highly recommend the OIKWAN USB-C Cisco Console Cable for anyone who works with Cisco equipment. Its robust design, compatibility, and ease of use make it a worthy investment. Don’t let connectivity issues hold you back; getting this cable will undoubtedly enhance your networking experience. If you’re ready to take your setups to the next level, this is the cable you need!

Feature	Description
Type	USB-C to RJ45 Console Cable
Length	3m (10 feet)
Compatibility	Windows 7, 8, 8.1, 10; macOS; Android
Chipset	FTDI FT232R + RS232 Level Shifter
Warranty	3 years
Color	Light Blue

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Why a USB-C to Serial Adapter is Essential for My Tech Needs

As someone who frequently works with various devices, I’ve found that a USB-C to Serial adapter has become an indispensable tool in my tech arsenal. With the rise of USB-C ports on modern laptops and devices, I often encounter situations where I need to connect to legacy serial devices, such as older printers, networking equipment, or even Arduino boards. This adapter bridges that gap seamlessly, allowing me to interface with older technology without the hassle of searching for outdated ports or cables.

One of the main benefits I’ve experienced is the versatility it offers. Whether I’m debugging a project, configuring network settings on older hardware, or simply transferring data, the USB-C to Serial adapter provides a straightforward solution. The plug-and-play functionality means I don’t have to fiddle with drivers or complex setups; I can simply connect the adapter and get to work, which saves me valuable time and effort.

Additionally, the compact design of these adapters makes them incredibly portable. I can easily slip one into my laptop bag, ensuring that I’m always prepared for any technical task that comes my way. Whether I’m working from home or on the go, having this adapter at my disposal has enhanced my productivity and flexibility,

Buying Guide for USB-C to Serial Adapter

Understanding My Needs

When I first decided to purchase a USB-C to Serial Adapter, I realized that my primary goal was to connect my modern devices to older serial equipment. I needed to ensure compatibility with my specific devices, so I took a moment to identify my requirements. I recommend considering what devices I plan to connect and the type of data transfer needed.

Compatibility Considerations

One of the first things I looked into was compatibility. I made sure the adapter would work seamlessly with my operating system, whether it was Windows, macOS, or Linux. Additionally, I checked if my devices had the right drivers available for the adapter. I learned that some adapters require manual driver installation, while others are plug-and-play.

Connection Types

I found it essential to understand the types of serial connections I would encounter. Most commonly, I saw RS-232, RS-422, and RS-485 standards. I assessed my needs based on the equipment I intended to connect. Knowing the correct serial standard helped me narrow down my options.

Data Transfer Speed

Data transfer speed was another critical factor for me. I evaluated the baud rates supported by the adapters I was considering. Higher baud rates allowed for faster communication, which was particularly important for my applications. I ensured that the adapter I chose could handle the speeds I required.

Build Quality and Durability

I paid close attention to the build quality of the adapters. Since I planned to use the adapter regularly, I wanted something durable. I looked for features like reinforced connectors and quality materials that could withstand everyday use. A well-constructed adapter would provide me with a reliable connection over time.

Cable Length and Portability

Portability was also on my mind. I considered the cable length, as I didn’t want to be tethered too closely to my devices. A longer cable provided flexibility, while a shorter one was easier to transport. I aimed to strike a balance between convenience and practicality.

Price and Warranty

I set a budget for my purchase, understanding that prices can vary significantly. I compared features and quality against the cost to ensure I was making a sound investment. Additionally, I looked for warranties or guarantees, as this provided me with peace of mind regarding my purchase.

Customer Reviews and Recommendations

Before making my final decision, I read through customer reviews to gauge the experiences of others. Feedback on performance, compatibility, and durability helped me make an informed choice. I found that hearing from actual users was invaluable in understanding how well an adapter performed in real-world scenarios.

selecting the right USB-C to Serial Adapter requires careful consideration of my specific needs and preferences. By evaluating compatibility, connection types, data transfer speeds, build quality, portability, price, and customer feedback, I felt confident that I could make a well-informed decision.

Author Profile

Casper Spikes

I’m Casper Spikes, and my journey has been anything but conventional. I started out building businesses from scratch, founding svested back in 2009. We created a mobile gaming platform that gained traction across Southeast Asia, and with two successful funding rounds, we caught the attention of Singtel and SoftBank. That acquisition in 2012 was my first big milestone. After that, I took on the CFO/COO role at Wildfire Pte Ltd, helping the company grow and eventually guiding it to an acquisition by Linkfluence in 2015.

But in 2025, I felt the urge to shift again. Not away from startups, but toward something more personal. I began writing. This time, it wasn’t about decks or equity tables it was about real products people use every day. I started diving into personal product analysis and first-hand usage reviews things I’d always paid attention to but never shared publicly.

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