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The Best usb to rs485 adapter of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best usb to rs485 adapter of 2022. Check our ranking below.

2,470 (random num) Reviews Scanned

Rank No. #1
USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection
  • Industrial USB to RS485 bidirectional converter with original FT232RL and SP485EEN chip. Due to its stable communication, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic.
  • Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance.
  • Transmission distance up to 1.2km--- The USB signal can be converted into a balanced differential RS485 signal and the transmission rate is stable. The reliable speed is 300-921600bps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB.
  • Multi system Support: Supports Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
Rank No. #2
Waveshare USB to RS485 Converter with Protection Circuits, Compatible with TVs
  • This is an industrial USB to RS485 converter with original FT232RL And SP485EEN inside. It features embedded protection circuits such as lllgthningproof, resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size.
  • The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • USB to RS485 communication Adopt original FT232RL, fast communicating, stable and reliable, better compatibility
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit anti-electrostatic
  • Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 3 LEDs for indicating the power and transceiver status
Rank No. #3
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet
  • USB to RS485/RS422 converter It easily lets you connect RS485 or RS422 device directly to your Laptop PC computer USB port (built with LED Troubleshooting Indicators)
  • USB to RS485 cable adapter is Ideal for industrial environment -provides 600w surge protection and 15KV ESD isolated protection on signal pins to protect costly and often sensitive control equipment against electrical damage
  • rs485 serial to usb converter is with high performance quality processor chip (FTDI-chipset FT232) and I/O auto conversion circuitry which makes RS 485 to USB convertor one of the most reliable dongle on the market
  • 1.5 ft serial RS-422 RS-485 to USB adapter cable supports windows 11 10 8 7, Mac and more; plug-and-play, No power supply needed
  • There are no IRQ and COM port conflicts, since the port do not require any additional IRQ, DMA, memory as resources on the system; RS485 for Half duplex and RS422 for Full duplex communication
Rank No. #4
2PCS Waveshare Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications
  • This is an industrial USB to RS485 converter with original FT232RL And SP485EEN inside. It features embedded protection circuits such as lllgthningproof, resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size.
  • Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • USB to RS485 communication. Adopt original FT232RL and SP485EEN, fast communicating, stable and reliable, better compatibility. 3 LEDs for indicating the power and transceiver status.
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lllgthningproof & anti-electrostatic.
  • Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance.
Rank No. #5
Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments
  • This is an industrial USB to RS232/485/TTL isolated converter with original FT232RL inside. It features embedded protection circuits such as power isolation ADI magnetical isolation and TVS diode etc. What's more the USB TO RS232/485/TTL comes with an aluminium alloy enclosure make it solid and durable to work.
  • The USB TO RS232/485/TTL is very easy to use fully automatic transceiving without delay. Due to its fast communication stability reliability and safety it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • Fully automatic transceiver circuit with no delay ensures the USB port communicates with different interfaces fastly and stably without interfering each other
  • Onboard unibody power supply isolation provides stable isolated voltage needs no extra power supply for the isolated terminal
  • High quality USB-B and RS232 connectors smoothly plug/pull
Rank No. #6
Xiusiyt USB to RJ45 Adapter RS485 Converter for PUSUNG Series SUTEN Smart BMS Connection, 1.8m
  • Versatile Connectivity: This USB to RJ45 adapter allows seamless connection between your computer and PUSUNG Series/SUTEN Smart BMS devices for data transfer and communication.
  • Reliable Conversion: Equipped with an RS485 converter chip, it efficiently converts USB signals to RJ45 protocol for stable and consistent performance.
  • Durable Construction: The adapter features a robust design with a sturdy USB connector and shielded RJ45 cable for long-lasting use.
  • Plug-and-Play: Built-in FT232R chip. Simply connect the adapter to your computer's USB port and the RJ45 end to your PUSUNG/SUTEN device for instant connectivity.
  • Wide Compatibility: Built-in FT232RL chip in the USB, this cable is compatible with almost all operating systems.
Rank No. #7
DSD TECH SH-U10 USB to RS485 Converter for Modbus
  • DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan.
  • USB to RS485:The SH-U10 is a USB to RS485 adapter. With this RS485 adapter you can quickly establish a connection to other RS485 nodes.
  • SILICON LABS CP2102 Chip:Built-in CP2012 serial chip. You don't have to worry about the driver. It is perfectly compatible with Windows 11,10,8,7,Liunx,Mac OS Etc.
  • Indicators: Built-in power and transceiver indicators. Understand the working status of the device at a glance.
  • Customer Support:DSD TECH offers a 1-year Replacement service and lifetime technical support for this USB to RS485 Adapter.If you meet any questions, Please contact us, We will fix your issue within 24 hours.
Rank No. #8
Gearmo USB to RS-422/485 Converter FTDI CHIP w/Terminals
  • CONNECTIVITY – This USB to RS-485/ RS-422 serial converter with LED for RX, TX, and Power. Allows for a full range of testing for this device.
  • UNIQUE CIRCUIT - The converter contains a unique I/O circuit with an internal zero delay. The auto transceiver within controls the data stream automatically without any handshaking signals such as RTS, DTR, etc.
  • SUPER COMPACT DESIGN - The USA-422485 is a small, compact converter that handles big communication jobs in converting RS 485 to RS 422.
  • NO ACCIDENTAL DISCONNECTS - Make your connections safe, simple, and secure with screw down terminals on our RS422/485 adapter. Just strip your wires, insert, and tighten it down
  • WHY Gearmo? Your Trusted Partner based in the USA, Providing Advanced Engineering, Highly Reliable and Superior Built Products to handle the most demanding industries for over 20 years. Reach out to us for CAD, Mechanical Drawings and, Data Sheets.
Rank No. #9
OIKWAN USB to RS485/RS422 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac 6 Feet
  • Wide range of applications to meet different needs: It is suitable for the connection between computers and various RS-485/RS-422 devices. Two-way mutual data transmission (USB to RS-485/RS-422, RS-485/RS-422 to USB) can be realized.
  • Compatible with a wide range of multi-system drive-free: It is compatible with all the Windows, MacOS, LinUX and other operating systems. For Win8/8.1/10/11 and MacOS systems, it is driver-free (networking automatically download to update drivers). However, For Win7/XP and LinUX systems, it is need to load driver from FTDI network and manually install.
  • Automatic conversion on RS485/422 protocol mode: Through the I / O (input/output) circuit, it can automatically control the direction of data transmission and does not require any jumper settings on handshake signals (such as RTS, DTR, etc.), so the RS485/422 mode conversion can easily realized and ensure that it meets the existing communication software and interface hardware.PS: It does not support the direct use of the 9-pin connection terminal equipment.
  • Supports 4 communication modes: (1) Point-to-point / 4-wire full-duplex; (2) Point-to-multipoint / 4-wire full-duplex; (3) Point-to-point / two-wire half-duplex; (4) Point-to-multipoint / two-wire half-duplex.
  • A stable transmission of 1200 meters due to the use of FT232+MX485 dual chip: it built-in the imported dual chip (UK FTDI232RL+MX485), plus TVS insurance diode, and support long-distance transmission for RS485/422 protocol equipment.
Rank No. #10
DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus
  • DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan.
  • USB to RS485/RS422:Industrial grade USB to RS485 RS422 converter. It easily lets you connect any RS485 or RS422 device directly to your computer's USB port
  • FTDI FT232R Chip:Built-in industrial grade FTDI FT232RNL/FT232RL chips, no need to worry about driver problems. Suitable for Windows 11, 10, 8, 7, Liunx, Mac OS and other operating systems.
  • Indicators: Built-in power and transceiver indicators. Understand the working status of the device at a glance.
  • Customer Support:Offering permanent technical support and a 1-year product replacement service. All questions will be answered for you within 1 business day

Last update on 2025-03-25 / Affiliate links / Images from Amazon Product Advertising API

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FAQ:

Q: Does Firewire plug into USB ports?

A: Firewire® ( IEEE 1394) and USB (Universal Serial Bus) are two separate high-speed bus technologies that allow multiple devices to be connected to a computer. The two technologies are not integrated, meaning it is not possible to connect a USB device to a Firewire® port directly.

Q: What is a RS485 connection?

A: RS-485 is a multipoint communications standard set by the Electronics Industry Alliance ( EIA ) and Telecommunications Industry Association (TIA). RS-485 supports several connection types, including DB-9 and DB-37.

Q: What is an USB serial adapter?

A: A USB to serial adapter, also referred to as a USB serial converter or RS232 adapter is a small electronic device which can convert a signal to RS232 data signals.RS232 is the type of signal which is in many older PCs and is referred to as a serial COM port.

Q: What is an USB audio adapter?

A: A USB stereo adapter is a device that plugs into a computer, or any other device with Universal Serial Bus (USB) capability, and allows for stereo sound upon playback of audio.

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