Best Windows 11 Serial Adapters

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
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)… 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 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 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 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 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 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 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 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 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 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.

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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)…

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
  • FTDI Chipset ensures fast, reliable performance for all your devices.
  • Plug-and-play convenience with no external power needed.
  • Wide compatibility with Windows, Mac, Linux, and more systems.
  • Gold-plated connectors and PVC cable for durability and high performance.
  • Not VGA, 9-pin only – double-check device compatibility before buying.
  • Driver download required – extra step needed for setup.
  • USB port needed – no external power option available.

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

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
  • Connects legacy devices to modern computers with ease.
  • Built-in LED indicators for quick testing.
  • Works with Windows, Mac, Linuxhighly versatile.
  • Trusted USA brand with 10+ years of reliability.
  • 5ft cable may be too short for some setups.
  • No USB-C option, limits use with newer devices.
  • LEDs always on, could drain power faster.

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

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
  • Connects laptops to RS232 devices like printers and scanners.
  • Works with Windows, Mac, and Linux systems.
  • Plug-and-play design for easy setup.
  • Durable gold-plated connectors for reliable performance.
  • No external power option for high-demand devices.
  • Manual driver install needed for some systems.
  • Not VGA compatible, only works with RS232 devices.

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

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
  • Plug and Play with easy USB-to-serial connection for hassle-free use.
  • Works Everywhere with Windows, macOS, Linux for universal compatibility.
  • Built to Last with gold-plated connectors and tangle-free design.
  • Fast Data Transfer up to 256kbps for quick, reliable communication.
  • Driver required for older Windows, macOS, and Linux systems.
  • Limited speed at 256kbps may not suit high-demand tasks.
  • No plug-and-play for systems below Windows 8.

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

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
  • Connects PCs to serial devices with ease.
  • Works with Windows, Mac, and Linux systems.
  • Long 6-foot cable for flexible setup.
  • Reliable PL2303 chip ensures stable performance.
  • Not compatible with FTDI chip devices.
  • Requires driver for some operating systems.
  • Only works with 9-pin male serial devices.

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

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
  • Connects devices easily with 10-foot long cable.
  • FTDI Chipset ensures reliable performance every time.
  • USB-Powered design needs no extra power supply.
  • Works with Windows, Mac, Linux seamlessly.
  • Not a USB-to-VGA cable, so won’t work for video.
  • No extra ports or hubs included, just one connection.
  • Long 10-foot cable might be too bulky for tight spaces.

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

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
  • Connects RS232 devices easily to USB ports.
  • Works with Windows, Mac, Linux, and more.
  • FTDI chipset ensures reliable performance.
  • 10-foot length offers flexible setup options.
  • Not for VGA monitors, only for RS232 serial devices.
  • Connector styles are not interchangeable, check before buying.
  • Requires driver download from the Tera Grand website.

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

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
  • Connects computers to RS-485/RS-422 devices easily.
  • Works with Windows, Mac, Linux—no drivers needed for most systems.
  • Auto-switches between RS485/422 modes for smooth data flow.
  • Supports 4 communication modes for flexible use.
  • Transmits data up to 1200 meters with dual chip tech.
  • No 9-pin support: Can’t connect directly to 9-pin terminal equipment.
  • Manual driver install: Requires setup for Win7/XP and Linux.
  • Short cable length: Only 6 feet, may limit placement options.

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

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
  • Connects easily to Windows, Mac, Linux, and more.
  • FTDI chipset ensures reliable and fast performance.
  • Works with modems, printers, and serial devices instantly.
  • Powered by USB port, no extra power needed.
  • No male thumbscrews included, check your device’s needs first.
  • Requires driver download for FTDI chipset to work properly.
  • Limited cable length at 3 feet, may not reach all setups.

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

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
  • Plug-and-play for instant use with no extra power needed.
  • FTDI chip ensures reliable and fast data conversion.
  • Surge protection shields devices from electrical damage.
  • LED indicators simplify troubleshooting and monitoring.
  • Wide compatibility with Windows, Mac, and more.
  • Short 1.5-foot cable limits setup flexibility.
  • No Linux support excludes some users.
  • Half-duplex RS485 restricts simultaneous data flow.

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!