Looking for the best Windows 11 serial adapters? We’ve handpicked 10 top-rated options that are reliable, plug-and-play, and seamlessly connect your older devices to modern Windows 11 systems.
Windows 11 users often need serial adapters to connect older devices to modern computers. These adapters are essential tools for anyone working with printers, scanners, or industrial equipment.
We’ve tested and reviewed the best Windows 11 serial adapters to make your choice easy. They’re reliable, plug-and-play, and work seamlessly with Windows 11.
List of Top 10 Windows 11 Serial Adapters
| Image | Title | Best For | Price |
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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)… |
This USB to RS232 adapter is perfect for anyone who needs to connect older serial devices to modern computers. It’s ideal for barcode scanners, cash registers, CNC controllers, and more. |
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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 |
This USB to Serial RS-232 Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s ideal for industrial, lab, or point-of-sale use. |
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DTECH USB to Serial Adapter DB9 RS232 Cable Prolific Chip PL2303 DB-9 Male Cord 3ft Compatible with Windows 11 10 8 7 Mac Linux for Laptop RS232C Printer Radio |
This USB to Serial Adapter is perfect for anyone who needs to connect old devices like printers, scanners, or radios to a modern laptop. It’s easy to use and works with Windows, Mac, and Linux. |
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UGREEN 6FT DB9 Male 9 Pin USB to Serial Adapter, RS232 to USB Cable |
This UGREEN 6FT DB9 Male 9 Pin USB to Serial Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for programmers, technicians, or business owners using cash registers, printers, or PLCs. |
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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 |
This USB to RS232 adapter is perfect for anyone who needs to connect older serial devices to a modern computer. It’s ideal for PCs, routers, GPS, barcode scanners, and more. |
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DTECH USB to Serial Adapter 10 ft USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux |
This USB to Serial Adapter is perfect for anyone who needs to connect older devices to modern computers. It’s great for tech enthusiasts, IT professionals, or anyone using serial devices with no built-in ports. |
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Tera Grand – Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 10 Feet – Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac – Built with FTDI Chipset and Thumbscrews |
This Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable is perfect for anyone who needs to connect older devices with DB9 serial ports to modern computers. It’s ideal for modems, barcode scanners, label printers, and other RS232 devices. |
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OIKWAN USB to RS485/RS422 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac 6 Feet |
This USB to RS485/RS422 adapter is perfect for anyone who needs to connect computers to industrial devices or automation systems. It’s ideal for long-distance data transmission and works seamlessly with Windows, Mac, and Linux. |
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Tera Grand – Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet – Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac – Built with FTDI Chipset and Hex Jack Nuts |
This Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable is perfect for anyone who needs to connect older devices with DB9 serial ports to modern computers. It’s ideal for modems, printers, scanners, and other serial devices, working seamlessly with Windows, Mac, Linux, and more. |
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DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet |
This USB to RS422/RS485 converter is perfect for anyone who needs to connect industrial devices to their computer. It’s ideal for engineers, technicians, or DIY enthusiasts working with sensitive equipment in industrial settings. |
Detailed Reviews
Discover the top 10 Windows 11 Serial Adapters in this expert-curated guide. Each adapter is handpicked for performance, reliability, and value, ensuring you find the perfect fit for your needs. Whether you’re connecting old devices or seeking plug-and-play convenience, this guide has you covered.
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)…

The OIKWAN USB to RS232 Adapter connects your USB devices to serial devices easily. It works with Windows, Mac, and Linux systems. Check your device’s pin before buying to ensure it fits.
This adapter supports serial modems, cameras, and printers. It uses a reliable FTDI chipset for fast, stable performance. No external power is needed—just plug and play.
The gold-plated connectors and PVC cable ensure durability and high performance. Its 6ft length and compact design make it portable and convenient for daily use.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to RS232 adapter is perfect for anyone who needs to connect older serial devices to modern computers. It’s ideal for barcode scanners, cash registers, CNC controllers, and more.
Ready to Purchase?
2. 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

The Gearmo USB to Serial RS-232 Adapter connects old devices to modern computers. Its 5ft cable works for industrial, lab, and point-of-sale uses.
LED indicators show connection status clearly. It works with Windows, Mac, and Linux systems.
Gearmo is a trusted USA brand with 10+ years of experience. They offer engineering support for project needs.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to Serial RS-232 Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s ideal for industrial, lab, or point-of-sale use.
Ready to Purchase?
3. DTECH USB to Serial Adapter DB9 RS232 Cable Prolific Chip PL2303 DB-9 Male Cord 3ft Compatible with Windows 11 10 8 7 Mac Linux for Laptop RS232C Printer Radio

The DTECH USB to Serial Adapter connects your laptop to 9-pin RS232 devices. It works with printers, scanners, and radios. This 3-foot cable is plug-and-play for easy use.
It supports Windows, Mac, and Linux systems. The Prolific PL2303 chip ensures reliable performance. No external power is needed for operation.
The gold-plated connectors add durability and high performance. Adjust baud rates easily for your needs. Perfect for serial devices like printers and GPS.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to Serial Adapter is perfect for anyone who needs to connect old devices like printers, scanners, or radios to a modern laptop. It’s easy to use and works with Windows, Mac, and Linux.
Ready to Purchase?
4. UGREEN 6FT DB9 Male 9 Pin USB to Serial Adapter, RS232 to USB Cable

The UGREEN 6FT DB9 Male 9 Pin USB to Serial Adapter connects RS232 devices to your computer easily. It works with serial programmers, PLCs, printers, and more. Just plug it in and start using it.
It’s compatible with Windows, macOS, and Linux. No driver needed for Windows 8 and above. For older systems, get the driver from the product guide or CD.
The gold-plated connectors and flexible PVC jacket make it durable. It supports speeds up to 256kbps for fast data transfer. The PL2303 chip ensures stable signal transmission.
| Pros | Cons |
|---|---|
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Perfect For:
This UGREEN 6FT DB9 Male 9 Pin USB to Serial Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for programmers, technicians, or business owners using cash registers, printers, or PLCs.
Ready to Purchase?
5. 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

The DTECH USB to RS232 DB9 Female Serial Adapter Cable lets you connect old serial devices to modern computers. It’s 6 feet long and works with Windows, Mac, and Linux.
It uses the Prolific PL2303 chip for reliable performance. Works with routers, GPS, and barcode scanners.
Before buying, check your device’s port. It needs a 9-pin Male Port to work. Easy to use and widely compatible.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to RS232 adapter is perfect for anyone who needs to connect older serial devices to a modern computer. It’s ideal for PCs, routers, GPS, barcode scanners, and more.
Ready to Purchase?
6. DTECH USB to Serial Adapter 10 ft USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux

The DTECH USB to Serial Adapter is a 10-foot cable that connects devices easily. It turns a USB port into a 9-pin serial port. This lets you link older devices to modern computers.
It works with Windows, Mac, and Linux systems. The FTDI Chipset ensures reliable performance. No extra power supply is needed.
This cable is USB-powered and portable. It’s perfect for serial devices needing a COM port. The 10-foot length gives you flexibility.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to Serial Adapter is perfect for anyone who needs to connect older devices to modern computers. It’s great for tech enthusiasts, IT professionals, or anyone using serial devices with no built-in ports.
Ready to Purchase?
7. Tera Grand – Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 10 Feet – Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac – Built with FTDI Chipset and Thumbscrews

The Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable is a 10-foot cable that connects RS232 devices to your computer. It works with Windows, Mac, Linux, and more, making it widely compatible.
This cable uses a FTDI chipset for reliable performance. It connects modems, printers, and scanners with DB9 ports easily.
Key features: Thumbscrews for secure connections. Not for VGA monitors. Download drivers from Tera Grand’s website.
| Pros | Cons |
|---|---|
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Perfect For:
This Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable is perfect for anyone who needs to connect older devices with DB9 serial ports to modern computers. It’s ideal for modems, barcode scanners, label printers, and other RS232 devices.
Ready to Purchase?
8. OIKWAN USB to RS485/RS422 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac 6 Feet

The OIKWAN USB to RS485/RS422 Converter is a versatile adapter for connecting computers to RS-485/RS-422 devices. It supports two-way data transmission, making it ideal for various applications.
It works with Windows, MacOS, and Linux systems. For newer systems, it’s driver-free, while older ones need a manual driver install.
This adapter uses dual chips for stable, long-distance transmission up to 1200 meters. It supports 4 communication modes and automatic protocol conversion.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to RS485/RS422 adapter is perfect for anyone who needs to connect computers to industrial devices or automation systems. It’s ideal for long-distance data transmission and works seamlessly with Windows, Mac, and Linux.
Ready to Purchase?
9. Tera Grand – Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet – Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac – Built with FTDI Chipset and Hex Jack Nuts

The Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable connects older devices to modern computers. It’s 3 feet long and works with many operating systems. Use it to link serial devices easily.
It supports Windows, Mac, Linux, and more. The FTDI chipset ensures reliable performance. Just plug it in and start using it.
This cable works with modems, printers, and scanners. Check if your device needs Male Thumbscrews or Female Hex Jack Nuts. These connectors are not the same.
| Pros | Cons |
|---|---|
|
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Perfect For:
This Tera Grand USB 2.0 to RS232 Serial DB9 Adapter Cable is perfect for anyone who needs to connect older devices with DB9 serial ports to modern computers. It’s ideal for modems, printers, scanners, and other serial devices, working seamlessly with Windows, Mac, Linux, and more.
Ready to Purchase?
10. DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet

The DTECH USB to RS422/RS485 Converter lets you connect devices easily. It works with Windows 11, 10, 8, 7, XP, and Mac.
It has LED indicators for troubleshooting. The FTDI chip ensures reliable performance.
This 1.5-foot cable is plug-and-play. It offers surge and ESD protection for industrial use.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to RS422/RS485 converter is perfect for anyone who needs to connect industrial devices to their computer. It’s ideal for engineers, technicians, or DIY enthusiasts working with sensitive equipment in industrial settings.
Ready to Purchase?
Buying Guide
Need a serial adapter for Windows 11? We’ve tested the best options to help you connect older devices easily.
Factors to Consider When Buying a Windows 11 Serial Adapter:
– Compatibility: Ensure the adapter works with Windows 11 and your device’s operating system. Check for plug-and-play support.
– Chipset: Look for FTDI or Prolific PL2303 chips for reliable performance. These ensure stable connections.
– Cable Length: Choose a length that fits your setup—3ft, 6ft, or 10ft options are common. Longer cables offer more flexibility.
– Connectors: Verify if your device needs a Male DB9 or Female DB9 port. Gold-plated connectors add durability.
– Durability: Opt for adapters with PVC jackets and sturdy build for long-lasting use.
– Speed: Check data transfer speeds, like 256kbps, for faster performance.
– LED Indicators: Adapters with LEDs help monitor connection status easily.
– Brand Reputation: Trusted brands like Gearmo and DTECH offer engineering support and reliability.
– Port Type: Ensure it supports RS232, RS485, or RS422 as needed for your devices.
– Ease of Use: Plug-and-play adapters save time and effort.
Make your choice confidently and connect your older devices seamlessly to Windows 11!