Best USB to RS485 Converters

Looking for the best USB to RS485 converters? We’ve rounded up the top 10 options to help you find the perfect match for your needs.

USB to RS485 converters are essential tools for linking modern devices to older industrial systems. They bridge the gap between USB and RS485 ports, ensuring smooth data flow in factories, labs, and more. These converters are compact, reliable, and easy to use, making them perfect for both pros and beginners.

With strong protection features like surge guards and ESD safety, they keep your equipment safe and working well. Whether you need fast communication, long-distance connections, or wide system support, there’s a converter here to fit your needs. Let’s explore the best options to find your perfect match.

List of Top 10 USB to RS485 Converters

Image Title Best For Price
USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection

This USB to RS485 Converter is perfect for anyone needing stable, fast communication in industrial settings. It’s ideal for control equipment or projects requiring reliable data transfer over long distances.

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Gearmo USB to RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible Gearmo USB to RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible

This USB to RS485/422 converter is perfect for anyone needing reliable, industrial-grade serial communication. It’s ideal for engineers, technicians, or businesses working in commercial, industrial, or office settings.

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USB to RS485 Converter with Shielded 1m Cable & Mini Screwdriver – Compatible with Cash Register, Scanner, Tax Machine, PLC, Industrial Automation (CH340)‌ USB to RS485 Converter with Shielded 1m Cable & Mini Screwdriver – Compatible with Cash Register, Scanner, Tax Machine, PLC, Industrial Automation (CH340)‌

This USB to RS485 Converter is perfect for anyone who needs reliable, high-speed communication with devices like cash registers, scanners, tax machines, PLCs, or industrial automation systems. It’s easy to use and works seamlessly with Windows, Linux, and Mac OS.

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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 cable is perfect for anyone who needs to connect a computer to RS-485 or RS-422 devices. It is simple to use and works with many operating systems without extra drivers.

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DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus

This USB to RS485/RS422 converter is perfect for anyone who needs to connect industrial devices to their computer. It’s ideal for professionals working with Modbus systems or RS485/RS422 devices.

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Waveshare USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-Mount and Rail-Mount Support Waveshare USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-Mount and Rail-Mount Support

This converter is perfect for industrial use. It’s great for stable and reliable communication in tough environments.

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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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Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs

This converter is perfect for anyone who needs to connect a PC to industrial equipment. It keeps your data safe and communication fast with strong protection circuits and stable signals.

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waveshare 2PCS Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications waveshare 2PCS Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications

This USB to RS485 converter is perfect for anyone needing reliable, fast communication in industrial settings. It’s ideal for control equipment or applications that demand stability and safety.

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DSD TECH SH-U10 USB to RS485 Converter for Modbus DSD TECH SH-U10 USB to RS485 Converter for Modbus

The DSD TECH SH-U10 USB to RS485 Converter is perfect for anyone needing a reliable connection to RS485 devices. It’s ideal for professionals in automation, industrial control, or data logging who want a simple, plug-and-play solution.

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Detailed Reviews

Discover the top 10 USB to RS485 converters in this expert-curated guide. Each product is thoroughly reviewed for performance, features, and value. Whether you need speed, protection, or affordability, we’ve got you covered. Find the perfect converter to meet your needs and upgrade your setup today.

1. USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection

USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection

This is an industrial USB to RS485 converter. It uses original chips for fast work.

It has strong protection circuits. It supports many systems. It sends data far away.

Pros Cons
  • Fast and stable data conversion for industrial gear.
  • Built-in surge protection keeps your setup safe.
  • Long range transmission up to 1.2 kilometers.
  • Easy compatibility with all major systems.
  • Safe power output with smart fuse protection.
  • Needs a long cord.
  • Costs more cash.
  • Hard for a new user.

Perfect For:

This USB to RS485 Converter is perfect for anyone needing stable, fast communication in industrial settings. It’s ideal for control equipment or projects requiring reliable data transfer over long distances.

Ready to Purchase?

2. Gearmo USB to RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible

Gearmo USB to RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible

The Gearmo USB to RS485 Converter gives you a fast and easy link for RS485 and RS422 jobs. It uses an FTDI chipset and has LED indicators for quick status checks.

It offers strong surge protection and ESD safety for tough work. It also supports Windows, Linux, and macOS.

It is small and easy to use. It has secure terminal connectors. It is made for reliable data.

Pros Cons
  • Connects fast without any hard setup steps.
  • Built tough with strong electric surge protection.
  • Easy LED lights show your signal status.
  • Works with all main computer systems.
  • Backed by strong USA engineering support.
  • No USB-C port, only works with older USB types.
  • Limited cable length, may restrict setup options.
  • No auto-update feature for drivers or firmware.

Perfect For:

This USB to RS485/422 converter is perfect for anyone needing reliable, industrial-grade serial communication. It’s ideal for engineers, technicians, or businesses working in commercial, industrial, or office settings.

Ready to Purchase?

3. USB to RS485 Converter with Shielded 1m Cable & Mini Screwdriver – Compatible with Cash Register, Scanner, Tax Machine, PLC, Industrial Automation (CH340)‌

USB to RS485 Converter with Shielded 1m Cable & Mini Screwdriver – Compatible with Cash Register, Scanner, Tax Machine, PLC, Industrial Automation (CH340)‌

This USB to RS485 Converter is a reliable tool for connecting devices like cash registers, scanners, and PLCs. It comes with a 1-meter shielded cable and a mini screwdriver for easy setup. The CH340 chip ensures smooth data transfer across multiple systems.

It offers industrial-level protection against surges, short circuits, and static electricity. The TXD and RXD indicator lights make it easy to monitor data flow.

With a transmission range of up to 1200 meters, it’s perfect for long-distance communication. It supports a high baud rate of 921600, ensuring fast and efficient data exchange.

Pros Cons
  • Strong protection helps guard against surge and shorts.
  • Long range reaches up to 1200 meters.
  • Fast speed supports up to 921600 baud.
  • Wide support works with many systems.
  • Easy use auto sets data flow with no jumpers.
  • Short cable limits where you can plug in.
  • The tiny tool is very easy to lose.
  • It costs more than a plain link.

Perfect For:

This USB to RS485 Converter is perfect for anyone who needs reliable, high-speed communication with devices like cash registers, scanners, tax machines, PLCs, or industrial automation systems. It’s easy to use and works seamlessly with Windows, Linux, and Mac OS.

Ready to Purchase?

4. 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 smart cable connects your computer to industrial serial devices in seconds. It uses a top FTDI chip to keep your data moving fast and safe over long distances.

It works smoothly across Windows, Mac, and Linux systems right away. You get a rock-solid connection that never drops or slows down your work.

Plug it in to start. Enjoy fast data transfer. Work without any stress.

Pros Cons
  • Wide compatibility with Windows, MacOS, and Linux.
  • Supports two-way data transfer for flexible use.
  • Automatic mode switching for easy RS485/422 use.
  • Built-in dual chip ensures stable, long-distance transmission.
  • Supports 4 communication modes for versatile connections.
  • Drivers may be hard to find for some systems.
  • The 6-foot cable can be too long for tight spaces.
  • Plastic casing feels a bit thin and less durable.

Perfect For:

This cable is perfect for anyone who needs to connect a computer to RS-485 or RS-422 devices. It is simple to use and works with many operating systems without extra drivers.

Ready to Purchase?

5. DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus

DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus

Connect your industrial gear directly to any computer with the DSD TECH SH-U11 USB converter. It converts RS485 and RS422 signals fast through a simple USB connection.

The built-in FTDI chip prevents driver headaches and runs smoothly on Windows, Mac, and Linux. Bright LED indicators let you check power and data flow in one glance.

Enjoy free technical support for life with your purchase. Every unit includes a full one-year replacement warranty. Trust a brand loved by thousands of customers.

Pros Cons
  • Seamless USB to RS485/RS422 connection for industrial devices.
  • Reliable FTDI chip ensures driver-free compatibility across OS.
  • Clear indicators for instant device status monitoring.
  • Lifetime technical support and 1-year replacement guarantee.
  • No auto-detect for RS485/RS422 modes, manual switch needed.
  • Limited cable length, may not suit long-distance setups.
  • No built-in surge protection for industrial use.

Perfect For:

This USB to RS485/RS422 converter is perfect for anyone who needs to connect industrial devices to their computer. It’s ideal for professionals working with Modbus systems or RS485/RS422 devices.

Ready to Purchase?

6. Waveshare USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-Mount and Rail-Mount Support

Waveshare USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-Mount and Rail-Mount Support

This isolated converter connects USB devices to industrial hardware. It handles data transfers fast and keeps equipment safe.

The unit uses top chips for smooth data flow. Internal power isolation stops electrical harm. Built-in surge guards block voltage spikes.

Simple status lights show power and signals. A tough outer shell mounts on rails or walls. You get heavy protection at a low cost.

Pros Cons
  • Fast, stable data with FT232RL and SP485EEN
  • Strong isolation for safe, steady use
  • High surge and ESD protection
  • Built-in fuse and safe output control
  • Easy install with rail-mount case
  • No USB-C port, only older USB types.
  • Fixed terminal resistor, not ideal for all setups.
  • ABS case, may not suit harsh environments.

Perfect For:

This converter is perfect for industrial use. It’s great for stable and reliable communication in tough environments.

Ready to Purchase?

7. 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 directly to your computer’s USB port. It has LED indicators for easy troubleshooting.

This adapter is ideal for industrial use, offering 600W surge protection and 15KV ESD isolation to safeguard sensitive equipment. It uses a high-quality FTDI chip for reliable performance.

Plug-and-play design works with Windows and Mac. No extra power or setup needed.

Pros Cons
  • Connects RS485/RS422 devices directly to USB with LED indicators.
  • Protects gear with 600W surge and 15KV ESD shielding.
  • Reliable FTDI chipset ensures top performance and stability.
  • Plug-and-play works with Windows, Mac, and more.
  • No power or driver conflicts for hassle-free use.
  • Short cable length limits flexibility in setup.
  • No Linux support may exclude some users.
  • Half duplex only for RS485, not full duplex.

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?

8. Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs

Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs

The Waveshare USB to RS485 Converter is a small but powerful tool. It has strong protection circuits to keep it safe and working well.

This converter is easy to use. It works fast. It is very reliable.

Pros Cons
  • Compact size fits easily in tight spaces.
  • Built-in protection circuits guard against surges and spikes.
  • Fast and stable communication with original FT232RL chip.
  • Easy to use with automatic transceiving.
  • LED indicators show power and data status clearly.
  • Limited to RS485, not for other connections.
  • Small size makes it easy to lose.
  • Needs a USB port to work.

Perfect For:

This converter is perfect for anyone who needs to connect a PC to industrial equipment. It keeps your data safe and communication fast with strong protection circuits and stable signals.

Ready to Purchase?

9. waveshare 2PCS Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications

waveshare 2PCS Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications

This industrial USB to RS485 converter uses original FT232RL and SP485EEN chips. It has built-in protection circuits like lightningproof, resettable fuse, and ESD protection. The device is small but powerful.

It offers fast, stable, and safe communication. It works well with industrial control equipment. Three LEDs show power and data status clearly.

Pros Cons
  • Fast and stable USB to RS485 link.
  • Strong protection against surge and static.
  • Small size fits tight spaces.
  • Clear status LEDs for easy checks.
  • Better compatibility with FT232RL chip.
  • No built-in cable, requires extra purchase.
  • Small size may be easy to misplace.
  • Limited LED indicators, basic status only.

Perfect For:

This USB to RS485 converter is perfect for anyone needing reliable, fast communication in industrial settings. It’s ideal for control equipment or applications that demand stability and safety.

Ready to Purchase?

10. DSD TECH SH-U10 USB to RS485 Converter for Modbus

DSD TECH SH-U10 USB to RS485 Converter for Modbus

Connect RS485 nodes with ease using this USB adapter. Powered by a CP2102 chip, it works smoothly with Windows, Mac, and Linux. Simple LED lights show your power and data status fast.

You get a one-year replacement and lifetime tech support. Contact us anytime to fix your issue in 24 hours.

Pros Cons
  • Fast USB to RS485 for quick device links.
  • Built-in CP2102 chip needs no extra driver.
  • Works with many systems like Windows, Mac, and Linux.
  • Power and data lights show device status fast.
  • Lifetime tech help and 1-year replacement add peace.
  • No auto-detect for RS485 nodes.
  • Limited cable length for stable connections.
  • No hardware flow control support.

Perfect For:

The DSD TECH SH-U10 USB to RS485 Converter is perfect for anyone needing a reliable connection to RS485 devices. It’s ideal for professionals in automation, industrial control, or data logging who want a simple, plug-and-play solution.

Ready to Purchase?

Buying Guide

USB to RS485 converters are key tools for linking modern devices to older systems. They make data flow smooth in factories, labs, and more.

Buying a USB to RS485 converter is easy when you know what to look for. Here’s a simple guide to help you pick the best one.

  • Chip Quality: Look for original chips like FT232RL or FTDI. They ensure fast and reliable data transfer.
  • Protection Features: Choose converters with surge guards, ESD safety, and resettable fuses. They keep your devices safe from damage.
  • Compatibility: Check if the converter works with your operating system (Windows, Mac, Linux). Some also support RS422 for extra flexibility.
  • Cable Length: Pick a converter with a long enough cable for your setup. Some come with 1-meter shielded cables for better reach.
  • LED Indicators: Converters with LED lights make it easy to check power and data status at a glance.
  • Ease of Use: Go for plug-and-play options. They save time and work right out of the box.
  • Build Quality: Choose converters with tough outer shells and secure connectors. They last longer in industrial settings.
  • Warranty & Support: Look for brands offering warranties and free technical support. It adds peace of mind.