Top 10 Best rs485 connector in 2026

Last Updated - 6/10/2026

🏆Best Choice

LuoQiuFa

LuoQiuFa 300V KF2EDGK 3.5mm Pitch 2-Pin PCB Screw Terminal Block Connector 25Pcs

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Specification: KF2EDGK3.5mm pitch, Plug-In PCB terminal block connector.
•Material: Plastic,Metal .Main Color : Silver Tone, Green.
•Rated Value: AC300V; Terminal Pitch: 3.5mm/ 0.14inch. Type:2Pin. Rated Value: AC300V; Wiring Range: 28-16AWG.
•is installed on the PCB Board. Used widely in the electronics, communication equipments, instruments, calculator, automatic control system, domestic appliance and warning devices, etc.
•Package includes: 25 x 2-pin screw terminal block.

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$8.99

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JUXINICE

JUXINICE 2Packs DB9 Serial Adapters No Soldering Needed. D-SUB 9-pin RS232 RS485 Adapter to Terminal Connector Signal Module with Bolts Nuts and Screwdriver (1PCS Male+1PCS Female)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•【No soldering needed】 This is SO convenient， convenient wiring. The shell is designed with folding buckle, It can be disassembled or assembled repeatedly，Case can be prevent short circuits
•【DIY DB9 cable 】Using 9pin male and female connectors, you can make DB9 cable or USB to RS232 / RS485 cable by yourself. The cable length and wiring sequence can be customized
•【Functional features】suitable for all kinds of industrial control products that need serial communication for pin connection, all copper base, 9pin gold-plated interface, iron shell salt spray for 24 hours
•【Scope of application】D-sub9pin does not need to weld serial port connector, which is suitable for RS232 / RS485 / RS422 serial adapter COM port ，Such as computer and tax control machine, digital camera,PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication.
•What you get :(1PCS Female +1PCS Male )with case，1PCS Screwdrivers ，4PCS 4#5+7 Serial port Nut ，4PCS 4#62mm Serial port long bolt ，4PCS 3*8mm Screws ，2PCS Wire pressing plate ，6PCS Wire cover

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$10.99

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UpperFu

UpperFu 2pcs RJ45 Male to 485 RS485 2 Pin (4 5P) Screw Terminal Adapter Connector Converter Splitter CCTV DVR (A to Pin 4, B Connect to Pin 5)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Male RJ45 to 2 Pin Screw terminal,Pin: Pin 4 and Pin 5 Connector
•Compact Design and Reliable Connection. Easy Pin Configuration: Adapter A Connects to PIN 4, Adapter B Connects to PIN 5 for Straightforward Setup.
•Material of Metal and Plastic, High durability, Good Performance
•Quantity: 2 Pcs Per Pack RJ45 to RS485 Converter

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$8.99

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YIOVVOM

YIOVVOM DB9 Female Breakout Connector, 9PIN Port Solderless RS232 D-SUB RS485 Serial Adapter, Solderless Module Board with Screw Terminals, Case, Long Bolts

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•The DB9 connector Pure copper plated joints, fine solder joints, resistance to plug, and good contact to ensure high-quality, durability and a long life. The outer casing is made of environmentally friendly PP engineering material, which is soft and durable.
•No welding required, no need for soldering iron and cumbersome tools, easy wiring. The housing is designed with a folding buckle for easy assembly and disassembly without tools, Case can be prevent short circuits
•Female DB9 breakout connector signal pins are Clearly Labeled on Both Sides of PCB board for quick connection and easy troubleshooting
•It can connect all kinds of serial devices. Such as computer and tax control machine, digital camera,PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication.
•Using 9pin male and female connectors, you can make DB9 cable or USB to RS232 / RS485 cable by yourself. The cable length and wiring sequence can be customized

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$7.98

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waveshare

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

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•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.

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$15.35

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waveshare

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

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•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

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$15.99

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DTECH

DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Port powered RS232 to RS485 Converter used in Long-haul Communication up to 4000ft (1200 meters)
•RS232 to RS485 adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network
•Automatic RX - TX Control; RS-232 to RS-485 Converter controls the “Receive” and “Transmit” modes automatically
•Up to 115.2kbps baud rate (auto-detect) can be applied to point to point two wire half duplex and point to multi-point two wire half duplex communication
•A built-in Transient Voltage Suppressor (TVS) supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage

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$8.75

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Xiusiyt

Xiusiyt USB to RS485-WE Serial Cable, RS485-WE-1800-BT UART Serial Converter Cable,USB-RS485-WE Wire End,6 Way,1.8m/6ft

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•RS485-WE-1800-BT CABLE: Xiusiyt 6 Feet RS485-WE-1800-BT cable Built-in FT232RQ and SP485EN chips, Enables seamless connection of RS485 devices to a USB port, ideal for industrial automation, networked systems, and control applications etc.
•TRANSPARENT USB: Transparent USB connector with integrated LED indicators for real-time Tx/Rx traffic monitoring.
•SIX PINOUTS: GND/Black, Data-/Yellow, 5v Power/RED, Terminator1/Brown, Data+/Orange, Terminator 2/Green.
•PLUG & PLAY: With built-in FT232RQ and SP485EN chips, this cable guarantees stable communication and hassle-free installation,it is plug and play.
•WIDE COMPATIBILITY: Works seamlessly with Windows , Linux, and Mac. etc., ideal for PLCs, sensors, and industrial control systems and so on.

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$18.89

$21.99

-14%

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DTECH

DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•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

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$17.98

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ANMBEST

ANMBEST 4PCS DB9 Female Breakout Connector,DB9 Solderless RS232 D-SUB Serial to 9-pin Port Terminal Adapter Connector Breakout Board with Case Long Bolts Tail Pipe

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•HIGH QUALITY&DURABLE: Pure copper plated joints, fine solder joints, resistance to plug, and good contact to ensure high-quality, durability and a long life. The outer casing is made of environmentally friendly PP engineering material, which is soft and durable.
•EASY TO USE: No welding required, 128 type environmental protection copper terminal design, no need for soldering iron and cumbersome tools, easy wiring. The housing is designed with a folding buckle for easy assembly and disassembly without tools.
•HIGH COMPATIBILITY: It can connect all kinds of serial devices. Such as computer and tax control machine, digital camera,PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication.
•HOMMIZATION: Each set of products is equipped with a set of cable pressing plate to prevent easy removal of the connected wires; Shell with non-slip design.
•INTUITIVE: All signal ports are clearly named and labeled on both sides of the board for quick wiring.

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$19.99

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