Best Serial Converter Cables: Connect Old Gear to USB Fast

Are you looking for the best serial converter cables to keep your older devices connected with ease?
We offer reliable, plug‑and‑play cables that make connecting RS‑232 equipment to modern USB ports simple and stress‑free.

Serial converter cables are a must-have for connecting old devices to modern computers. They make it easy to link RS-232 devices like modems, printers, and industrial equipment to your USB port.

These cables are plug-and-play, so setup is quick and simple. They work with Windows, Mac, and Linux, ensuring compatibility for most users.

Reliable, fast, and easy to use. These cables keep your setup smooth and stress-free.

List of Top 10 Serial Converter Cables

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)…	This cable is perfect for anyone who needs a simple, fast, and reliable way to connect older RS232 devices to a modern USB port. It’s great for people who use scanners, POS systems, CNC machines, or other serial tools and want a setup that works with ease.	View on Amazon (paid link)
TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White	This USB to Serial 9-Pin Converter Cable is perfect for anyone who needs to connect older devices like modems or printers to modern computers. It’s easy to use, works with Windows and Mac, and is NDAA compliant for government projects.	View on Amazon (paid link)
SABRENT USB 2.0 to Serial (DB9 RS232) Adapter Cable, Prolific Chipset, Driver Support Required for Some Systems, Windows 11/10/8/7, macOS, Linux (CB-DB9P)	This USB to Serial adapter is perfect for anyone who needs to connect old or industrial devices to a modern computer. It’s great for modems, machinery, or legacy hardware that uses RS-232 serial communication.	View on Amazon (paid link)
SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 6 Feet (CB-9P6F)	This cable is great for anyone who needs a simple, fast, and steady way to link old serial devices to a modern computer. It’s perfect for people who want a quick setup and a reliable connection without any stress.	View on Amazon (paid link)
OIKWAN USB to RS232 DB9 Serial Cable Female Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)	Tech pros who need a quick, reliable link between a USB‑only laptop and serial equipment will love this cable. Its plug‑and‑play design means you can start using it right away, no extra power or complicated setup.	View on Amazon (paid link)
CableCreation USB to RS232 Serial Adapter with PL2303 Chipset, 6.6 FT USB 2.0 to DB9 Female Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras,CNC etc, Black	This cable is perfect for people who need a simple, steady way to link old‑school DB9 devices to a modern USB port. It’s great for anyone who wants a fast, easy, and reliable connection for work tools.	View on Amazon (paid link)
SABRENT USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI)	This adapter is perfect for people who need a simple, steady way to link older gear to a USB port. It suits anyone who wants a fast, clean, and easy connection without any trouble.	View on Amazon (paid link)
SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 10 Feet (CB-9PTF)	This cable is great for anyone who needs a simple, steady way to link old serial devices to a modern computer. It is perfect for people who want a quick setup and a reliable connection every time.	View on Amazon (paid link)
OIKWAN USB to RS232 DB9 Serial Cable Male Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)…	This USB to RS232 DB9 Serial Cable is perfect for anyone who needs to connect older devices to modern computers. It’s ideal for tech enthusiasts, professionals, or DIY users working with serial devices like barcode scanners, CNC controllers, or POS systems.	View on Amazon (paid link)
StarTech.com 17in (43cm) 1-Port USB to Serial Adapter Cable, USB-A to DB9 RS232 Adapter, Prolific Chipset – M/M	This USB to serial adapter is perfect for IT pros and tech-savvy users who need to connect older devices to modern computers. It’s great for professionals on the go who need a reliable, portable solution.	View on Amazon (paid link)

Detailed Reviews

These top Serial Converter Cables are picked with care to give you clear facts and real value. Each one is checked for performance, ease of use, and build quality so you can choose with confidence. This simple guide makes it easy to find the best cable for your setup and keeps you excited to learn more.

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 cable makes device links fast and easy. It fits many systems with no stress. It keeps your setup simple and smooth.

This cable works with many tools. It links fast and stays stable.

The FTDI chipset gives strong speed and clear data flow. The gold‑plated parts add long life. The light design makes it easy to carry.

Pros	Cons
Fast and stable data link Easy plug‑and‑play setup Works with many systems Strong and durable build Gold‑plated connector for better performance	Needs driver setup before use Only works with DB9, not other ports Pin check can be easy to miss

Perfect For:

This cable is perfect for anyone who needs a simple, fast, and reliable way to connect older RS232 devices to a modern USB port. It’s great for people who use scanners, POS systems, CNC machines, or other serial tools and want a setup that works with ease.

Ready to Purchase?

View Price on Amazon (paid link)

TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White

The TRENDnet USB to Serial 9-Pin Converter Cable connects RS-232 devices like modems or printers to your computer. It’s plug-and-play, so setup takes just seconds.

It works with Windows and Mac, supports USB 1.1, 2.0, and 3.0, and is NDAA compliant for government use. The 25-inch cable is flexible and backed by 2 years of manufacturer protection.

Pros	Cons
Fast data link for smooth use Easy setup in a few seconds Works with many Windows and Mac systems Strong build with 2-year protection Flexible cable for simple setup	Short cable may limit reach Needs drivers for some setups Not ideal for high‑speed tasks

Perfect For:

This USB to Serial 9-Pin Converter Cable is perfect for anyone who needs to connect older devices like modems or printers to modern computers. It’s easy to use, works with Windows and Mac, and is NDAA compliant for government projects.

Ready to Purchase?

View Price on Amazon (paid link)

3. SABRENT USB 2.0 to Serial (DB9 RS232) Adapter Cable, Prolific Chipset, Driver Support Required for Some Systems, Windows 11/10/8/7, macOS, Linux (CB-DB9P)

The SABRENT USB 2.0 to Serial Adapter lets you connect old devices to modern computers. It works with RS-232 serial devices like modems and industrial equipment.

Some systems need driver installation. Check your setup for compatibility. Works with Windows, macOS, and Linux.

This adapter offers flexible settings for stable communication. Adjust COM ports and baud rates to match your device needs.

Pros	Cons
Easy link for old gear Fast setup on many systems Stable data flow every time Works on major platforms Simple COM port control	Needs drivers, which can slow setup Not plug‑and‑play on many systems Works only with RS‑232 gear

Perfect For:

This USB to Serial adapter is perfect for anyone who needs to connect old or industrial devices to a modern computer. It’s great for modems, machinery, or legacy hardware that uses RS-232 serial communication.

Ready to Purchase?

View Price on Amazon (paid link)

4. SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 6 Feet (CB-9P6F)

SABRENT USB to Serial cable links USB to a 9‑pin RS‑232 port. It works with Windows, Mac, and Linux. The 6‑foot length gives you room to move.

Plug it in and it works right away. No drivers needed for most systems.

You can change COM ports and baud rates easily. It comes with a lifetime warranty.

Pros	Cons
Fast link from USB to RS‑232 Works on many systems with ease Simple plug and play setup Adjustable COM ports and speeds Lifetime warranty for peace of mind	No Linux driver included, requiring manual download. Limited length options, only 6 feet available. No LED indicators for connection status.

Perfect For:

This cable is great for anyone who needs a simple, fast, and steady way to link old serial devices to a modern computer. It’s perfect for people who want a quick setup and a reliable connection without any stress.

Ready to Purchase?

View Price on Amazon (paid link)

5. OIKWAN USB to RS232 DB9 Serial Cable Female Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)

This USB to RS232 cable makes device links fast and easy. It uses a strong FTDI chipset for smooth work. It fits many systems with no extra power needed.

The DB9 female port is clear and simple to use. The setup is quick with a one-time driver install. It gives steady data flow up to 1Mbps.

You get a 10ft cable built for long reach. You also get 24‑month support.

Pros	Cons
FTDI Chipset ensures stable and wide compatibility with multiple OS. Plug-and-play design for easy setup and quick use. High-speed USB transfer up to 1Mbps for efficient data. 24-month warranty offers peace of mind and reliable support.	Driver required for setup, not plug-and-play right away. Female connector only, check device compatibility before buying. 1Mbps speed, slower for large data transfers.

Perfect For:

Tech pros who need a quick, reliable link between a USB‑only laptop and serial equipment will love this cable.
Its plug‑and‑play design means you can start using it right away, no extra power or complicated setup.

Ready to Purchase?

View Price on Amazon (paid link)

6. CableCreation USB to RS232 Serial Adapter with PL2303 Chipset, 6.6 FT USB 2.0 to DB9 Female Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras,CNC etc, Black

CableCreation USB to RS232 Serial Adapter with PL2303 Chipset, 6.6 FT USB 2.0 to DB9 Female Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras,CNC etc, Black

This CableCreation USB to RS232 is a 6.6 ft cable that turns a USB port into a DB9 serial port. It uses the PL2303 chipset for fast, reliable data transfer. The cable is perfect for cash registers, modems, scanners, and CNC machines.

The build is solid with tinned copper and triple shielding, so your signals stay clean. It comes with a 24‑month warranty and quick support.

Pros	Cons
Fast data transfer up to 1Mbps Works with many devices and systems Stable signal with triple shielding Easy plug‑and‑play setup Strong support with 24‑month warranty	Needs a null modem adapter at times Not for cutting plotters or SCM gear Female DB9 port may not fit all setups

Perfect For:

This cable is perfect for people who need a simple, steady way to link old‑school DB9 devices to a modern USB port. It’s great for anyone who wants a fast, easy, and reliable connection for work tools.

Ready to Purchase?

View Price on Amazon (paid link)

7. SABRENT USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI)

The SABRENT USB 2.0 to Serial Adapter gives you a fast and simple way to link old gear to modern ports. It works with a 6 ft cable and strong male thumbscrews for a firm hold.

It sets up fast. It runs smooth. It stays stable. It avoids IRQ conflicts and supports remote wake‑up with ease.

You also get a 96‑byte buffer for steady data flow. It works with USB 1.1 and USB 2.0 devices. It keeps your setup clean and stress‑free.

Pros	Cons
Easy 6 ft reach for smooth setup Strong grip with male thumbscrews Fast data flow with 96‑byte buffers Stable link with no IRQ issues Works with many USB standards	No USB 3.0 support, slower data transfer speeds. Limited buffer size (96 bytes), may not handle large data. No built-in cable tie, prone to tangling.

Perfect For:

This adapter is perfect for people who need a simple, steady way to link older gear to a USB port. It suits anyone who wants a fast, clean, and easy connection without any trouble.

Ready to Purchase?

View Price on Amazon (paid link)

8. SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 10 Feet (CB-9PTF)

The SABRENT USB to Serial Cable gives you a fast, simple way to link your USB port to a 9‑pin RS‑232 device. It works with many systems and keeps your setup smooth.

Setup is quick. Use it with many Windows versions. It also works on Mac and Linux.

You can change COM ports and baud rates with ease. The cable is plug-and-play and built to last. It also comes with a lifetime warranty for peace of mind.

Pros	Cons
Fast link from USB to serial port Works on many systems Simple plug and play setup Easy to change COM settings Lifetime warranty for peace of mind	May need drivers on some older systems Not ideal for very high‑speed data Cable is long, which can feel bulky

Perfect For:

This cable is great for anyone who needs a simple, steady way to link old serial devices to a modern computer. It is perfect for people who want a quick setup and a reliable connection every time.

Ready to Purchase?

View Price on Amazon (paid link)

9. OIKWAN USB to RS232 DB9 Serial Cable Male Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)…

The OIKWAN USB to RS232 DB9 Serial Cable is a reliable adapter for connecting serial devices to your computer. It works with Windows, Mac, and Linux systems, making it versatile for various setups. Always check the pin compatibility before use to ensure it fits your device.

This cable supports USB 2.0 with a 1Mbps data transfer rate, thanks to its FTDI chipset. It’s plug-and-play, requiring no external power. The gold-plated connectors and PVC cable ensure durability and high performance.

Its compact design makes it easy to carry, fitting neatly into your bag. The simple installation and adjustable baud rate make it convenient for all users. Perfect for serial devices like barcode scanners or label printers.

Pros	Cons
Fast and steady data link Easy plug-and-play setup Strong and durable build Works with many devices Reliable FTDI chip inside	Not VGA or 15-pin, ensure compatibility before buying. Requires driver download, extra step needed for setup. Male connector only, check device interface carefully.

Perfect For:

This USB to RS232 DB9 Serial Cable is perfect for anyone who needs to connect older devices to modern computers. It’s ideal for tech enthusiasts, professionals, or DIY users working with serial devices like barcode scanners, CNC controllers, or POS systems.

Ready to Purchase?

View Price on Amazon (paid link)

10. StarTech.com 17in (43cm) 1-Port USB to Serial Adapter Cable, USB-A to DB9 RS232 Adapter, Prolific Chipset – M/M

The StarTech.com USB to Serial Adapter Cable gives you a fast and simple way to add a DB9 RS232 port to your device. It is small and light, so it slips into your bag with ease.

It works with many tools. It sets up fast. It runs smooth.

This cable uses a Prolific chipset for steady, clear data flow. It supports major systems and offers strong speed for pro use. It is built for IT pros who need gear they can trust.

Pros	Cons
Easy to carry and use anywhere Works with many devices and systems Fast data transfer for smooth use Strong build for IT pros Simple plug-and-play setup	Short cable limits where you can place gear Noisy setups may need extra tweaks to work well Not ideal for very high‑speed data jobs

Perfect For:

This USB to serial adapter is perfect for IT pros and tech-savvy users who need to connect older devices to modern computers. It’s great for professionals on the go who need a reliable, portable solution.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

You want a cable that works fast, feels simple, and keeps your setup calm. You want clear data flow with no stress. You want a cable that just works every time.

Best Serial Converter Cables Buying Guide

Chipset:
The chipset controls how smooth your data moves. Pick FTDI or Prolific for clean, stable flow. They work well with many systems.
Compatibility:
Make sure the cable works with your computer system. Check support for Windows, Mac, and Linux. This avoids setup issues.
Build Quality:
Strong connectors and solid shielding keep signals clean. Good materials stop breaks and noise. This gives long, steady use.
Cable Length:
Short cables stay tidy. Long cables give more room to move. Pick the length that fits your space.
Plug-and-Play:
Some cables work right away. Others need drivers. Choose what fits your skill and setup.
Port Type:
Check if you need a male or female DB9 port. This makes sure the cable fits your device. A mismatch will not connect.
Data Speed:
Higher baud rates mean faster flow. Pick a cable that supports the speed your device needs. This keeps data clear.
Warranty:
A good warranty gives peace of mind. It shows the maker trusts the product. It also helps if something goes wrong.

List of Top 10 Serial Converter Cables

Detailed Reviews

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)…

Perfect For:

Ready to Purchase?

2. TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White

Perfect For:

Ready to Purchase?

3. SABRENT USB 2.0 to Serial (DB9 RS232) Adapter Cable, Prolific Chipset, Driver Support Required for Some Systems, Windows 11/10/8/7, macOS, Linux (CB-DB9P)

Perfect For:

Ready to Purchase?

4. SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 6 Feet (CB-9P6F)

Perfect For:

Ready to Purchase?

5. OIKWAN USB to RS232 DB9 Serial Cable Female Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)

Perfect For:

Ready to Purchase?

6. CableCreation USB to RS232 Serial Adapter with PL2303 Chipset, 6.6 FT USB 2.0 to DB9 Female Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras,CNC etc, Black

Perfect For:

Ready to Purchase?

7. SABRENT USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI)

Perfect For:

Ready to Purchase?

8. SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, Hexnuts, [Windows 10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 10 Feet (CB-9PTF)

Perfect For:

Ready to Purchase?

9. OIKWAN USB to RS232 DB9 Serial Cable Male Converter Adapter with FTDI Chipset for Windows 11,10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 (10ft)…

Perfect For:

Ready to Purchase?

10. StarTech.com 17in (43cm) 1-Port USB to Serial Adapter Cable, USB-A to DB9 RS232 Adapter, Prolific Chipset – M/M

Perfect For:

Ready to Purchase?

Buying Guide