Best Plug-and-Play Serial Port Adapters

Looking for the best plug-and-play serial port adapters? We’ve compiled a list of 10 top adapters to help you connect old devices to modern computers effortlessly.

Plug-and-play serial port adapters make connecting old devices to modern computers simple and hassle-free. Whether you’re working with CNC machines, barcode scanners, or legacy equipment, these adapters ensure reliable performance without the need for complex setups.

They’re easy to use, widely compatible, and save you time and effort. Perfect for professionals and hobbyists alike, these adapters bring old tech back to life with just a single plug.

List of Top 10 Plug-and-Play Serial Port 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 tech enthusiasts, IT professionals, or business owners using POS systems, barcode scanners, or CNC controllers.

View on Amazon (paid link)
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 great for industrial, lab, or point-of-sale use.

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CableCreation USB to RS232 DB9 Serial Adapter Cable, PL2303 Chipset, 6.6 FT CableCreation USB to RS232 DB9 Serial Adapter Cable, PL2303 Chipset, 6.6 FT

This USB to RS232 DB9 Serial Adapter Cable is perfect for anyone who needs to connect older devices with standard DB9 serial ports to modern computers. It’s ideal for modems, PDAs, cash registers, and more, ensuring stable and reliable data transfer.

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Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146) Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146)

This Manhattan USB to Serial Converter is perfect for anyone who needs to connect older serial devices to a modern USB port. It’s ideal for quickly adding an RS232 port to your computer or laptop, making it easy to use serial modems, barcode scanners, or digital cameras.

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Cyberguys! DB9 Adapter 3-Pack, RS232 Serial Gender Changer Set Cyberguys! DB9 Adapter 3-Pack, RS232 Serial Gender Changer Set

This DB9 Adapter 3-Pack is perfect for anyone who needs to connect older devices like PCs, modems, or printers. It’s great for tight spaces and easy to use, with no extra tools needed.

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Gearmo USB to RS-232 Serial Adapter - Genuine FTDI Chipset, Dual-Color LED Indicators Lights, Plug & Play, Use Legacy DB9 Serial Devices with Modern USB Systems (16 in. Cable) Gearmo USB to RS-232 Serial Adapter – Genuine FTDI Chipset, Dual-Color LED Indicators Lights, Plug & Play, Use Legacy DB9 Serial Devices with Modern USB Systems (16 in. Cable)

This USB to RS-232 adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for PLCs, barcode scanners, GPS units, and other legacy tools with DB9 ports.

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EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

This USB to Serial Adapter is perfect for anyone who needs to connect older devices to modern computers. It’s ideal for LED screen control, MCU downloads, or MODEM communication, making it easy to use with Windows or Mac systems.

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BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA) BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA)

This USB to Serial Adapter is perfect for anyone who needs to connect older devices like barcode scanners, digital cameras, or PDAs to a modern computer. It’s easy to use and works with Windows, Mac, and Linux.

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JESSINIE Industrial USB to Serial Adapter UART Serial Adapter FT232RL Serial to USB Converter USB to TTL Adapter Port Module Support Multi Systems and Multi Protection Circuits with Shell JESSINIE Industrial USB to Serial Adapter UART Serial Adapter FT232RL Serial to USB Converter USB to TTL Adapter Port Module Support Multi Systems and Multi Protection Circuits with Shell

This USB to Serial Adapter is perfect for anyone who needs reliable communication between computers and TTL equipment. It’s ideal for programmers, engineers, or hobbyists working with multi-system compatibility and industrial-grade performance.

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StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I) StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I)

This StarTech 4-Port USB to Serial RS232 Hub is perfect for industrial settings. It’s built tough and easy to install, making it ideal for harsh environments where reliable connections are a must.

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Detailed Reviews

Discover the top 10 Plug-and-Play Serial Port Adapters in this expert-curated guide. Each adapter is thoroughly reviewed for performance, ease of use, and value. Whether you need reliability or affordability, this guide helps you find the perfect match. Dive in to find the best adapter for your needs!

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 USB devices to serial devices. It uses a FTDI chipset for reliable performance. Works with Windows, Mac, and Linux.

This 6-foot cable supports 1Mbps data transfer. It’s plug-and-play with no extra power needed. Perfect for CNC, PLC, or barcode scanners.

The gold-plated connectors ensure durability. Its compact design fits easily in your bag. Ideal for professional and personal use.

Pros Cons
  • FTDI Chipset ensures fast, reliable performance for all devices.
  • Plug-and-play design with no external power needed.
  • Wide compatibility with Windows, Mac, Linux, and more.
  • Gold-plated connectors and PVC cable for durability and high performance.
  • Not VGA, 9-pin only—check your device’s compatibility before buying.
  • Requires driver download—must install from official site first.
  • No external power—may limit use with high-power devices.

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 tech enthusiasts, IT professionals, or business owners using POS systems, barcode scanners, or CNC controllers.

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 lets you connect old devices to modern computers. It has a 5-foot cable and works with Windows, Mac, and Linux.

It has LED lights for easy testing, uses a reliable FTDI Chipset, and comes with engineering support for your projects.

Pros Cons
  • Connects old devices to new computers effortlessly.
  • LED indicators for fast, easy testing.
  • Works with Windows, Mac, Linuxsuper versatile.
  • Trusted USA brand, 10+ years of reliability.
  • No USB-C option, limiting use with newer devices.
  • LEDs may distract in low-light environments.
  • 5ft cable could be too short for some setups.

Perfect For:

This USB to Serial RS-232 Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for industrial, lab, or point-of-sale use.

Ready to Purchase?

3. CableCreation USB to RS232 DB9 Serial Adapter Cable, PL2303 Chipset, 6.6 FT

CableCreation USB to RS232 DB9 Serial Adapter Cable, PL2303 Chipset, 6.6 FT

The CableCreation USB to RS232 DB9 Serial Adapter Cable is a reliable solution for connecting serial devices to your computer. It features a gold-plated USB 2.0 connector and a female DB9 serial port, supporting data transfer rates up to 1Mbps. This cable is 6.6 feet long, providing flexibility in device placement.

It uses the Prolific PL2303 chipset, ensuring compatibility with Windows, Linux, and Mac OS. Plug-and-play functionality is available for Windows users, while other systems may require driver installation. The cable is widely compatible with various devices, but not with cutting plotters or SCM equipment.

With tinned copper conductor and triple shielding, this cable ensures stable and high-quality data transmission. CableCreation offers a 24-month warranty and lifetime customer service, making it a dependable choice for your serial device connectivity needs.

Pros Cons
  • Connects USB to RS232 devices with 1Mbps speed.
  • Plug-and-play for Windows, Linux, and Mac OS.
  • Triple shielding ensures stable, high-quality data transmission.
  • 24-month warranty and lifetime customer support included.
  • Not compatible with cutting plotters or SCM equipment.
  • Female RS232 connector may not fit all devices—check before buying.
  • Requires driver download for offline Windows, Mac, and Linux systems.

Perfect For:

This USB to RS232 DB9 Serial Adapter Cable is perfect for anyone who needs to connect older devices with standard DB9 serial ports to modern computers. It’s ideal for modems, PDAs, cash registers, and more, ensuring stable and reliable data transfer.

Ready to Purchase?

4. Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146)

Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146)

The Manhattan USB to Serial Converter lets you quickly add an RS232 port to your computer using a single USB port. It’s easy to use and works with most serial devices.

Connect modems, cameras, scanners, and more without hassle. It’s Windows compatible, plug-and-play, and hot-swappable for smooth operation.

Lifetime warranty included. 45 cm cable for flexibility. Up to 225 kbps transfer rate.

Pros Cons
  • Quickly adds an RS232 port to your USB.
  • Easily connect serial devices like cameras and scanners.
  • Plug and Play with Windowsno hassle.
  • Lifetime Warranty for peace of mind.
  • Limited to Windows systems, no Mac or Linux support.
  • Short 45 cm cable may restrict device placement.
  • Max speed of 225 kbps could be slow for some uses.

Perfect For:

This Manhattan USB to Serial Converter is perfect for anyone who needs to connect older serial devices to a modern USB port. It’s ideal for quickly adding an RS232 port to your computer or laptop, making it easy to use serial modems, barcode scanners, or digital cameras.

Ready to Purchase?

5. Cyberguys! DB9 Adapter 3-Pack, RS232 Serial Gender Changer Set

Cyberguys! DB9 Adapter 3-Pack, RS232 Serial Gender Changer Set

The Cyberguys DB9 Adapter 3-Pack is a must-have for connecting devices. It includes female to female, male to male, and male to female adapters. These slimline adapters save space and reduce port stress.

They are durable with nickel-plated shells and plug-and-play for easy use. Works with RS232 serial ports for computers, printers, and more.

Pros Cons
  • Saves space with a slim design for tight setups.
  • Durable build resists corrosion for long-lasting use.
  • Plug & play convenience, no drivers or tools needed.
  • Broad compatibility with RS232 devices for easy connections.
  • Limited to RS232 ports, not for modern USB or HDMI.
  • No color options, only standard nickel-plated design.
  • Not for high-speed data, only legacy devices.

Perfect For:

This DB9 Adapter 3-Pack is perfect for anyone who needs to connect older devices like PCs, modems, or printers. It’s great for tight spaces and easy to use, with no extra tools needed.

Ready to Purchase?

6. Gearmo USB to RS-232 Serial Adapter – Genuine FTDI Chipset, Dual-Color LED Indicators Lights, Plug & Play, Use Legacy DB9 Serial Devices with Modern USB Systems (16 in. Cable)

Gearmo USB to RS-232 Serial Adapter - Genuine FTDI Chipset, Dual-Color LED Indicators Lights, Plug & Play, Use Legacy DB9 Serial Devices with Modern USB Systems (16 in. Cable)

The Gearmo USB to RS-232 Serial Adapter lets you connect old devices to modern systems. It uses a genuine FTDI chipset for reliable performance. The 16-inch cable keeps setups neat and tidy.

It works with Windows, Linux, and macOS right away. No extra power is needed—just plug it in. Dual-color LED lights help you monitor data flow easily.

The adapter supports PLCs, scanners, and more. It’s compact and fits tight spaces well. Plug and play setup saves you time and hassle.

Pros Cons
  • Instantly add a DB9 serial port to any USB device.
  • Reliable performance with genuine FTDI chipset, no driver issues.
  • Real-time diagnostics with dual-color LED indicators.
  • Plug and play setup, broad OS support, no hassle.
  • Compact 16-inch cable keeps workspaces tidy.
  • No USB-C support, only works with older USB ports.
  • Short 16-inch cable may limit setup flexibility in some cases.
  • Price higher than generic, non-FTDI chip alternatives.

Perfect For:

This USB to RS-232 adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for PLCs, barcode scanners, GPS units, and other legacy tools with DB9 ports.

Ready to Purchase?

7. EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

The EC Buying USB 2.0 to Serial DB-9 RS232 Adapter is a plug-and-play solution. It connects devices with ease. Works with Windows 7/8/10/11/XP.

This adapter converts USB to a 9-pin serial port. It requires no external power and installs quickly.

It supports various devices, like LED screens and MODEM. Works with USB1.0/1.1 and USB2.0.

Pros Cons
  • Plug-and-play simplicity for instant connectivity.
  • No external power needed, easy installation.
  • Wide compatibility with Windows and Mac systems.
  • Fast data transfer up to 12MBPS for smooth performance.
  • No Linux or Android support, limiting cross-platform use.
  • Requires driver installation, not plug-and-play for all systems.
  • No external power, may not work with power-hungry devices.

Perfect For:

This USB to Serial Adapter is perfect for anyone who needs to connect older devices to modern computers. It’s ideal for LED screen control, MCU downloads, or MODEM communication, making it easy to use with Windows or Mac systems.

Ready to Purchase?

8. BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA)

BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA)

The BENFEI USB to Serial Adapter connects USB devices to RS-232 serial devices. It works with Windows, Mac, and Linux systems.

It has a standard USB Type A Male and a 9-pin DB9 Male connector. The Prolific PL-2303 Chipset ensures wide compatibility. No external power is needed.

Tinned Copper Conductor and triple shielding provide reliable data transfer. Plug & play after one-time driver installation. 18-month warranty included.

Pros Cons
  • Connects serial devices easily to USB ports.
  • Plug-and-play after one-time driver install.
  • Wide compatibility with Windows, Mac, and Linux.
  • Triple shielding ensures reliable data transfer.
  • 18-month warranty for peace of mind.
  • Driver required for setup, not plug-and-play right away.
  • Not a VGA cable, only for serial devices.
  • No external power option, relies on USB port.

Perfect For:

This USB to Serial Adapter is perfect for anyone who needs to connect older devices like barcode scanners, digital cameras, or PDAs to a modern computer. It’s easy to use and works with Windows, Mac, and Linux.

Ready to Purchase?

9. JESSINIE Industrial USB to Serial Adapter UART Serial Adapter FT232RL Serial to USB Converter USB to TTL Adapter Port Module Support Multi Systems and Multi Protection Circuits with Shell

JESSINIE Industrial USB to Serial Adapter UART Serial Adapter FT232RL Serial to USB Converter USB to TTL Adapter Port Module Support Multi Systems and Multi Protection Circuits with Shell

The JESSINIE Industrial USB to Serial Adapter is a reliable tool for connecting computers to TTL equipment. It uses FT232RL chips for stable, high-performance communication.

It works with multiple systems, has built-in protection, and shows status lights for easy debugging. Its compact design makes it portable and user-friendly.

Pros Cons
  • Stable and compatible with FT232RL chips for industrial-grade performance.
  • Clear data indicators for easy programming and debugging.
  • Adjustable output voltage (3.3V/5V) and wide communication rate range.
  • Multi-system support for Windows, Mac, Linux, Android, and more.
  • Protected interfaces with self-recovery fuse and ESD protection.
  • No support for older operating systems like XP or Vista.
  • Limited to USB-A ports, not compatible with USB-C devices.
  • No built-in cable, requires separate USB cable for use.

Perfect For:

This USB to Serial Adapter is perfect for anyone who needs reliable communication between computers and TTL equipment. It’s ideal for programmers, engineers, or hobbyists working with multi-system compatibility and industrial-grade performance.

Ready to Purchase?

10. StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I)

StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I)

The StarTech 4-Port USB to Serial RS232 Hub is built tough for industrial use. Its all-metal design ensures durability in harsh environments.

It’s easy to install with plug-and-play setup. No extra power is needed, and COM port settings stay saved after reboots.

Mount it anywhere with wall brackets or DIN Rail clips. This versatile hub is ready for any workspace.

Pros Cons
  • Rugged all-metal build for harsh environments.
  • COM port assignments stay saved after reboots.
  • Plug-and-play setup, no extra power needed.
  • Versatile mounting with wall brackets and DIN Rail clips.
  • No USB cable included, so you must buy one separately.
  • Limited port count for large setups, only 4 ports available.
  • No power adapter option, relies solely on USB power.

Perfect For:

This StarTech 4-Port USB to Serial RS232 Hub is perfect for industrial settings. It’s built tough and easy to install, making it ideal for harsh environments where reliable connections are a must.

Ready to Purchase?

Buying Guide

Plug-and-play serial port adapters make connecting old devices to modern computers easy. They save you time and effort.

Buying Guide for Best Plug-and-Play Serial Port Adapters

When choosing a plug-and-play serial port adapter, consider these factors:

  • Compatibility: Ensure the adapter works with your operating system (Windows, Mac, Linux) and devices (CNC machines, barcode scanners, etc.).

  • Chipset: Look for reliable chipsets like FTDI or Prolific for stable performance.

  • Cable Length: Choose a length that suits your setup, from 16 inches to 6.6 feet.

  • Connectors: Opt for gold-plated or nickel-plated connectors for durability and reliable connections.

  • Data Transfer Speed: Consider adapters with speeds up to 1Mbps for faster data transfer.

  • Plug-and-Play: Select adapters that require no extra drivers or power for easy setup.

  • LED Indicators: Adapters with LED lights help you monitor data flow and troubleshoot issues.

  • Warranty and Support: Look for adapters with warranties and customer support for peace of mind.

  • Design: Choose compact or industrial-grade designs based on your workspace needs.

  • Price: Compare prices to find the best value for your budget.

With these factors in mind, you’ll find the perfect plug-and-play serial port adapter for your needs.